21301800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2731}}^1$

素因数の和:2763

約数の個数: 96

約数和(自身を含む): 71141280

約数和(自身を除く): 49839480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 195, 200, 260, 300, 312, 325, 390, 520, 600, 650, 780, 975, 1300, 1560, 1950, 2600, 2731, 3900, 5462, 7800, 8193, 10924, 13655, 16386, 21848, 27310, 32772, 35503, 40965, 54620, 65544, 68275, 71006, 81930, 106509, 109240, 136550, 142012, 163860, 177515, 204825, 213018, 273100, 284024, 327720, 355030, 409650, 426036, 532545, 546200, 710060, 819300, 852072, 887575, 1065090, 1420120, 1638600, 1775150, 2130180, 2662725, 3550300, 4260360, 5325450, 7100600, 10650900, 21301800]

約数ペア:

[(1, 21301800), (2, 10650900), (3, 7100600), (4, 5325450), (5, 4260360), (6, 3550300), (8, 2662725), (10, 2130180), (12, 1775150), (13, 1638600), (15, 1420120), (20, 1065090), (24, 887575), (25, 852072), (26, 819300), (30, 710060), (39, 546200), (40, 532545), (50, 426036), (52, 409650), (60, 355030), (65, 327720), (75, 284024), (78, 273100), (100, 213018), (104, 204825), (120, 177515), (130, 163860), (150, 142012), (156, 136550), (195, 109240), (200, 106509), (260, 81930), (300, 71006), (312, 68275), (325, 65544), (390, 54620), (520, 40965), (600, 35503), (650, 32772), (780, 27310), (975, 21848), (1300, 16386), (1560, 13655), (1950, 10924), (2600, 8193), (2731, 7800), (3900, 5462)]