21620430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1087}}^1$

素因数の和:1130

約数の個数: 96

約数和(自身を含む): 64157184

約数和(自身を除く): 42536754

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1087, 1105, 1170, 1326, 1530, 1989, 2174, 2210, 3261, 3315, 3978, 5435, 6522, 6630, 9783, 9945, 10870, 14131, 16305, 18479, 19566, 19890, 28262, 32610, 36958, 42393, 48915, 55437, 70655, 84786, 92395, 97830, 110874, 127179, 141310, 166311, 184790, 211965, 240227, 254358, 277185, 332622, 423930, 480454, 554370, 635895, 720681, 831555, 1201135, 1271790, 1441362, 1663110, 2162043, 2402270, 3603405, 4324086, 7206810, 10810215, 21620430]

約数ペア:

[(1, 21620430), (2, 10810215), (3, 7206810), (5, 4324086), (6, 3603405), (9, 2402270), (10, 2162043), (13, 1663110), (15, 1441362), (17, 1271790), (18, 1201135), (26, 831555), (30, 720681), (34, 635895), (39, 554370), (45, 480454), (51, 423930), (65, 332622), (78, 277185), (85, 254358), (90, 240227), (102, 211965), (117, 184790), (130, 166311), (153, 141310), (170, 127179), (195, 110874), (221, 97830), (234, 92395), (255, 84786), (306, 70655), (390, 55437), (442, 48915), (510, 42393), (585, 36958), (663, 32610), (765, 28262), (1087, 19890), (1105, 19566), (1170, 18479), (1326, 16305), (1530, 14131), (1989, 10870), (2174, 9945), (2210, 9783), (3261, 6630), (3315, 6522), (3978, 5435)]