21355439820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{52957}}^1$

素因数の和:53040

約数の個数: 192

約数和(自身を含む): 71744956416

約数和(自身を除く): 50389516596

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 47, 52, 55, 60, 65, 66, 78, 94, 110, 130, 132, 141, 143, 156, 165, 188, 195, 220, 235, 260, 282, 286, 330, 390, 429, 470, 517, 564, 572, 611, 660, 705, 715, 780, 858, 940, 1034, 1222, 1410, 1430, 1551, 1716, 1833, 2068, 2145, 2444, 2585, 2820, 2860, 3055, 3102, 3666, 4290, 5170, 6110, 6204, 6721, 7332, 7755, 8580, 9165, 10340, 12220, 13442, 15510, 18330, 20163, 26884, 31020, 33605, 36660, 40326, 52957, 67210, 80652, 100815, 105914, 134420, 158871, 201630, 211828, 264785, 317742, 403260, 529570, 582527, 635484, 688441, 794355, 1059140, 1165054, 1376882, 1588710, 1747581, 2065323, 2330108, 2488979, 2753764, 2912635, 3177420, 3442205, 3495162, 4130646, 4977958, 5825270, 6884410, 6990324, 7466937, 7572851, 8261292, 8737905, 9955916, 10326615, 11650540, 12444895, 13768820, 14933874, 15145702, 17475810, 20653230, 22718553, 24889790, 27378769, 29867748, 30291404, 32356727, 34951620, 37334685, 37864255, 41306460, 45437106, 49779580, 54757538, 64713454, 74669370, 75728510, 82136307, 90874212, 97070181, 109515076, 113592765, 129426908, 136893845, 149338740, 151457020, 161783635, 164272614, 194140362, 227185530, 273787690, 323567270, 328545228, 355923997, 388280724, 410681535, 454371060, 485350905, 547575380, 647134540, 711847994, 821363070, 970701810, 1067771991, 1423695988, 1642726140, 1779619985, 1941403620, 2135543982, 3559239970, 4271087964, 5338859955, 7118479940, 10677719910, 21355439820]

約数ペア:

[(1, 21355439820), (2, 10677719910), (3, 7118479940), (4, 5338859955), (5, 4271087964), (6, 3559239970), (10, 2135543982), (11, 1941403620), (12, 1779619985), (13, 1642726140), (15, 1423695988), (20, 1067771991), (22, 970701810), (26, 821363070), (30, 711847994), (33, 647134540), (39, 547575380), (44, 485350905), (47, 454371060), (52, 410681535), (55, 388280724), (60, 355923997), (65, 328545228), (66, 323567270), (78, 273787690), (94, 227185530), (110, 194140362), (130, 164272614), (132, 161783635), (141, 151457020), (143, 149338740), (156, 136893845), (165, 129426908), (188, 113592765), (195, 109515076), (220, 97070181), (235, 90874212), (260, 82136307), (282, 75728510), (286, 74669370), (330, 64713454), (390, 54757538), (429, 49779580), (470, 45437106), (517, 41306460), (564, 37864255), (572, 37334685), (611, 34951620), (660, 32356727), (705, 30291404), (715, 29867748), (780, 27378769), (858, 24889790), (940, 22718553), (1034, 20653230), (1222, 17475810), (1410, 15145702), (1430, 14933874), (1551, 13768820), (1716, 12444895), (1833, 11650540), (2068, 10326615), (2145, 9955916), (2444, 8737905), (2585, 8261292), (2820, 7572851), (2860, 7466937), (3055, 6990324), (3102, 6884410), (3666, 5825270), (4290, 4977958), (5170, 4130646), (6110, 3495162), (6204, 3442205), (6721, 3177420), (7332, 2912635), (7755, 2753764), (8580, 2488979), (9165, 2330108), (10340, 2065323), (12220, 1747581), (13442, 1588710), (15510, 1376882), (18330, 1165054), (20163, 1059140), (26884, 794355), (31020, 688441), (33605, 635484), (36660, 582527), (40326, 529570), (52957, 403260), (67210, 317742), (80652, 264785), (100815, 211828), (105914, 201630), (134420, 158871)]