20211750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:727

約数の個数: 96

約数和(自身を含む): 58941792

約数和(自身を除く): 38730042

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 125, 130, 150, 195, 225, 234, 250, 325, 375, 390, 450, 585, 650, 691, 750, 975, 1125, 1170, 1382, 1625, 1950, 2073, 2250, 2925, 3250, 3455, 4146, 4875, 5850, 6219, 6910, 8983, 9750, 10365, 12438, 14625, 17275, 17966, 20730, 26949, 29250, 31095, 34550, 44915, 51825, 53898, 62190, 80847, 86375, 89830, 103650, 134745, 155475, 161694, 172750, 224575, 259125, 269490, 310950, 404235, 449150, 518250, 673725, 777375, 808470, 1122875, 1347450, 1554750, 2021175, 2245750, 3368625, 4042350, 6737250, 10105875, 20211750]

約数ペア:

[(1, 20211750), (2, 10105875), (3, 6737250), (5, 4042350), (6, 3368625), (9, 2245750), (10, 2021175), (13, 1554750), (15, 1347450), (18, 1122875), (25, 808470), (26, 777375), (30, 673725), (39, 518250), (45, 449150), (50, 404235), (65, 310950), (75, 269490), (78, 259125), (90, 224575), (117, 172750), (125, 161694), (130, 155475), (150, 134745), (195, 103650), (225, 89830), (234, 86375), (250, 80847), (325, 62190), (375, 53898), (390, 51825), (450, 44915), (585, 34550), (650, 31095), (691, 29250), (750, 26949), (975, 20730), (1125, 17966), (1170, 17275), (1382, 14625), (1625, 12438), (1950, 10365), (2073, 9750), (2250, 8983), (2925, 6910), (3250, 6219), (3455, 5850), (4146, 4875)]