21988010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4253}}^1$

素因数の和:4318

約数の個数: 32

約数和(自身を含む): 44105472

約数和(自身を除く): 22117462

約数列:

[1, 2, 5, 10, 11, 22, 47, 55, 94, 110, 235, 470, 517, 1034, 2585, 4253, 5170, 8506, 21265, 42530, 46783, 93566, 199891, 233915, 399782, 467830, 999455, 1998910, 2198801, 4397602, 10994005, 21988010]

約数ペア:

[(1, 21988010), (2, 10994005), (5, 4397602), (10, 2198801), (11, 1998910), (22, 999455), (47, 467830), (55, 399782), (94, 233915), (110, 199891), (235, 93566), (470, 46783), (517, 42530), (1034, 21265), (2585, 8506), (4253, 5170)]