21559740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:971

約数の個数: 96

約数和(自身を含む): 66769920

約数和(自身を除く): 45210180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 204, 230, 255, 276, 340, 345, 391, 460, 510, 690, 782, 919, 1020, 1173, 1380, 1564, 1838, 1955, 2346, 2757, 3676, 3910, 4595, 4692, 5514, 5865, 7820, 9190, 11028, 11730, 13785, 15623, 18380, 21137, 23460, 27570, 31246, 42274, 46869, 55140, 62492, 63411, 78115, 84548, 93738, 105685, 126822, 156230, 187476, 211370, 234345, 253644, 312460, 317055, 359329, 422740, 468690, 634110, 718658, 937380, 1077987, 1268220, 1437316, 1796645, 2155974, 3593290, 4311948, 5389935, 7186580, 10779870, 21559740]

約数ペア:

[(1, 21559740), (2, 10779870), (3, 7186580), (4, 5389935), (5, 4311948), (6, 3593290), (10, 2155974), (12, 1796645), (15, 1437316), (17, 1268220), (20, 1077987), (23, 937380), (30, 718658), (34, 634110), (46, 468690), (51, 422740), (60, 359329), (68, 317055), (69, 312460), (85, 253644), (92, 234345), (102, 211370), (115, 187476), (138, 156230), (170, 126822), (204, 105685), (230, 93738), (255, 84548), (276, 78115), (340, 63411), (345, 62492), (391, 55140), (460, 46869), (510, 42274), (690, 31246), (782, 27570), (919, 23460), (1020, 21137), (1173, 18380), (1380, 15623), (1564, 13785), (1838, 11730), (1955, 11028), (2346, 9190), (2757, 7820), (3676, 5865), (3910, 5514), (4595, 4692)]