21112300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1129}}^1$

素因数の和:1171

約数の個数: 72

約数和(自身を含む): 52965360

約数和(自身を除く): 31853060

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1100, 1129, 1700, 1870, 2258, 3740, 4516, 4675, 5645, 9350, 11290, 12419, 18700, 19193, 22580, 24838, 28225, 38386, 49676, 56450, 62095, 76772, 95965, 112900, 124190, 191930, 211123, 248380, 310475, 383860, 422246, 479825, 620950, 844492, 959650, 1055615, 1241900, 1919300, 2111230, 4222460, 5278075, 10556150, 21112300]

約数ペア:

[(1, 21112300), (2, 10556150), (4, 5278075), (5, 4222460), (10, 2111230), (11, 1919300), (17, 1241900), (20, 1055615), (22, 959650), (25, 844492), (34, 620950), (44, 479825), (50, 422246), (55, 383860), (68, 310475), (85, 248380), (100, 211123), (110, 191930), (170, 124190), (187, 112900), (220, 95965), (275, 76772), (340, 62095), (374, 56450), (425, 49676), (550, 38386), (748, 28225), (850, 24838), (935, 22580), (1100, 19193), (1129, 18700), (1700, 12419), (1870, 11290), (2258, 9350), (3740, 5645), (4516, 4675)]