18821770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 37138176

約数和(自身を除く): 18316406

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 397, 431, 794, 862, 1985, 2155, 3970, 4310, 4367, 4741, 8734, 9482, 21835, 23705, 43670, 47410, 171107, 342214, 855535, 1711070, 1882177, 3764354, 9410885, 18821770]

約数ペア:

[(1, 18821770), (2, 9410885), (5, 3764354), (10, 1882177), (11, 1711070), (22, 855535), (55, 342214), (110, 171107), (397, 47410), (431, 43670), (794, 23705), (862, 21835), (1985, 9482), (2155, 8734), (3970, 4741), (4310, 4367)]