19218998

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{631}}^1$

素因数の和:887

約数の個数: 16

約数和(自身を含む): 29357664

約数和(自身を除く): 10138666

約数列:

[1, 2, 97, 157, 194, 314, 631, 1262, 15229, 30458, 61207, 99067, 122414, 198134, 9609499, 19218998]

約数ペア:

[(1, 19218998), (2, 9609499), (97, 198134), (157, 122414), (194, 99067), (314, 61207), (631, 30458), (1262, 15229)]