19813996

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 35342720

約数和(自身を除く): 15528724

約数列:

[1, 2, 4, 97, 194, 223, 229, 388, 446, 458, 892, 916, 21631, 22213, 43262, 44426, 51067, 86524, 88852, 102134, 204268, 4953499, 9906998, 19813996]

約数ペア:

[(1, 19813996), (2, 9906998), (4, 4953499), (97, 204268), (194, 102134), (223, 88852), (229, 86524), (388, 51067), (446, 44426), (458, 43262), (892, 22213), (916, 21631)]