19849492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4289}}^1$

素因数の和:4395

約数の個数: 24

約数和(自身を含む): 37837800

約数和(自身を除く): 17988308

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4289, 4628, 8578, 17156, 55757, 111514, 223028, 381721, 763442, 1526884, 4962373, 9924746, 19849492]

約数ペア:

[(1, 19849492), (2, 9924746), (4, 4962373), (13, 1526884), (26, 763442), (52, 381721), (89, 223028), (178, 111514), (356, 55757), (1157, 17156), (2314, 8578), (4289, 4628)]