21244860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1297}}^1$

素因数の和:1332

約数の個数: 144

約数和(自身を含む): 79375296

約数和(自身を除く): 58130436

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1297, 1365, 1638, 1820, 2340, 2594, 2730, 3276, 3891, 4095, 5188, 5460, 6485, 7782, 8190, 9079, 11673, 12970, 15564, 16380, 16861, 18158, 19455, 23346, 25940, 27237, 33722, 36316, 38910, 45395, 46692, 50583, 54474, 58365, 67444, 77820, 81711, 84305, 90790, 101166, 108948, 116730, 118027, 136185, 151749, 163422, 168610, 181580, 202332, 233460, 236054, 252915, 272370, 303498, 326844, 337220, 354081, 408555, 472108, 505830, 544740, 590135, 606996, 708162, 758745, 817110, 1011660, 1062243, 1180270, 1416324, 1517490, 1634220, 1770405, 2124486, 2360540, 3034980, 3540810, 4248972, 5311215, 7081620, 10622430, 21244860]

約数ペア:

[(1, 21244860), (2, 10622430), (3, 7081620), (4, 5311215), (5, 4248972), (6, 3540810), (7, 3034980), (9, 2360540), (10, 2124486), (12, 1770405), (13, 1634220), (14, 1517490), (15, 1416324), (18, 1180270), (20, 1062243), (21, 1011660), (26, 817110), (28, 758745), (30, 708162), (35, 606996), (36, 590135), (39, 544740), (42, 505830), (45, 472108), (52, 408555), (60, 354081), (63, 337220), (65, 326844), (70, 303498), (78, 272370), (84, 252915), (90, 236054), (91, 233460), (105, 202332), (117, 181580), (126, 168610), (130, 163422), (140, 151749), (156, 136185), (180, 118027), (182, 116730), (195, 108948), (210, 101166), (234, 90790), (252, 84305), (260, 81711), (273, 77820), (315, 67444), (364, 58365), (390, 54474), (420, 50583), (455, 46692), (468, 45395), (546, 38910), (585, 36316), (630, 33722), (780, 27237), (819, 25940), (910, 23346), (1092, 19455), (1170, 18158), (1260, 16861), (1297, 16380), (1365, 15564), (1638, 12970), (1820, 11673), (2340, 9079), (2594, 8190), (2730, 7782), (3276, 6485), (3891, 5460), (4095, 5188)]