21042450

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 192

約数和(自身を含む): 68745600

約数和(自身を除く): 47703150

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 25, 26, 27, 30, 33, 39, 45, 50, 54, 55, 65, 66, 75, 78, 90, 99, 109, 110, 117, 130, 135, 143, 150, 165, 195, 198, 218, 225, 234, 270, 275, 286, 297, 325, 327, 330, 351, 390, 429, 450, 495, 545, 550, 585, 594, 650, 654, 675, 702, 715, 825, 858, 975, 981, 990, 1090, 1170, 1199, 1287, 1350, 1417, 1430, 1485, 1635, 1650, 1755, 1950, 1962, 2145, 2398, 2475, 2574, 2725, 2834, 2925, 2943, 2970, 3270, 3510, 3575, 3597, 3861, 4251, 4290, 4905, 4950, 5450, 5850, 5886, 5995, 6435, 7085, 7150, 7194, 7425, 7722, 8175, 8502, 8775, 9810, 10725, 10791, 11990, 12753, 12870, 14170, 14715, 14850, 15587, 16350, 17550, 17985, 19305, 21255, 21450, 21582, 24525, 25506, 29430, 29975, 31174, 32175, 32373, 35425, 35970, 38259, 38610, 42510, 46761, 49050, 53955, 59950, 63765, 64350, 64746, 70850, 73575, 76518, 77935, 89925, 93522, 96525, 106275, 107910, 127530, 140283, 147150, 155870, 161865, 179850, 191295, 193050, 212550, 233805, 269775, 280566, 318825, 323730, 382590, 389675, 420849, 467610, 539550, 637650, 701415, 779350, 809325, 841698, 956475, 1169025, 1402830, 1618650, 1912950, 2104245, 2338050, 3507075, 4208490, 7014150, 10521225, 21042450]

約数ペア:

[(1, 21042450), (2, 10521225), (3, 7014150), (5, 4208490), (6, 3507075), (9, 2338050), (10, 2104245), (11, 1912950), (13, 1618650), (15, 1402830), (18, 1169025), (22, 956475), (25, 841698), (26, 809325), (27, 779350), (30, 701415), (33, 637650), (39, 539550), (45, 467610), (50, 420849), (54, 389675), (55, 382590), (65, 323730), (66, 318825), (75, 280566), (78, 269775), (90, 233805), (99, 212550), (109, 193050), (110, 191295), (117, 179850), (130, 161865), (135, 155870), (143, 147150), (150, 140283), (165, 127530), (195, 107910), (198, 106275), (218, 96525), (225, 93522), (234, 89925), (270, 77935), (275, 76518), (286, 73575), (297, 70850), (325, 64746), (327, 64350), (330, 63765), (351, 59950), (390, 53955), (429, 49050), (450, 46761), (495, 42510), (545, 38610), (550, 38259), (585, 35970), (594, 35425), (650, 32373), (654, 32175), (675, 31174), (702, 29975), (715, 29430), (825, 25506), (858, 24525), (975, 21582), (981, 21450), (990, 21255), (1090, 19305), (1170, 17985), (1199, 17550), (1287, 16350), (1350, 15587), (1417, 14850), (1430, 14715), (1485, 14170), (1635, 12870), (1650, 12753), (1755, 11990), (1950, 10791), (1962, 10725), (2145, 9810), (2398, 8775), (2475, 8502), (2574, 8175), (2725, 7722), (2834, 7425), (2925, 7194), (2943, 7150), (2970, 7085), (3270, 6435), (3510, 5995), (3575, 5886), (3597, 5850), (3861, 5450), (4251, 4950), (4290, 4905)]