21331411970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1723}}^1\times {\mathrm{3881}}^1$

素因数の和:5651

約数の個数: 64

約数和(自身を含む): 43367840640

約数和(自身を除く): 22036428670

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 1723, 3190, 3446, 3881, 7762, 8615, 17230, 18953, 19405, 37906, 38810, 42691, 49967, 85382, 94765, 99934, 112549, 189530, 213455, 225098, 249835, 426910, 499670, 549637, 562745, 1099274, 1125490, 1238039, 2476078, 2748185, 5496370, 6190195, 6686963, 12380390, 13373926, 33434815, 66869630, 73556593, 147113186, 193921927, 367782965, 387843854, 735565930, 969609635, 1939219270, 2133141197, 4266282394, 10665705985, 21331411970]

約数ペア:

[(1, 21331411970), (2, 10665705985), (5, 4266282394), (10, 2133141197), (11, 1939219270), (22, 969609635), (29, 735565930), (55, 387843854), (58, 367782965), (110, 193921927), (145, 147113186), (290, 73556593), (319, 66869630), (638, 33434815), (1595, 13373926), (1723, 12380390), (3190, 6686963), (3446, 6190195), (3881, 5496370), (7762, 2748185), (8615, 2476078), (17230, 1238039), (18953, 1125490), (19405, 1099274), (37906, 562745), (38810, 549637), (42691, 499670), (49967, 426910), (85382, 249835), (94765, 225098), (99934, 213455), (112549, 189530)]