21518250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2207}}^1$

素因数の和:2240

約数の個数: 64

約数和(自身を含む): 57867264

約数和(自身を除く): 36349014

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2207, 3250, 4414, 4875, 6621, 9750, 11035, 13242, 22070, 28691, 33105, 55175, 57382, 66210, 86073, 110350, 143455, 165525, 172146, 275875, 286910, 331050, 430365, 551750, 717275, 827625, 860730, 1434550, 1655250, 2151825, 3586375, 4303650, 7172750, 10759125, 21518250]

約数ペア:

[(1, 21518250), (2, 10759125), (3, 7172750), (5, 4303650), (6, 3586375), (10, 2151825), (13, 1655250), (15, 1434550), (25, 860730), (26, 827625), (30, 717275), (39, 551750), (50, 430365), (65, 331050), (75, 286910), (78, 275875), (125, 172146), (130, 165525), (150, 143455), (195, 110350), (250, 86073), (325, 66210), (375, 57382), (390, 55175), (650, 33105), (750, 28691), (975, 22070), (1625, 13242), (1950, 11035), (2207, 9750), (3250, 6621), (4414, 4875)]