21284218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{1801}}^1$

素因数の和:2133

約数の個数: 16

約数和(自身を含む): 33733440

約数和(自身を除く): 12449222

約数列:

[1, 2, 19, 38, 311, 622, 1801, 3602, 5909, 11818, 34219, 68438, 560111, 1120222, 10642109, 21284218]

約数ペア:

[(1, 21284218), (2, 10642109), (19, 1120222), (38, 560111), (311, 68438), (622, 34219), (1801, 11818), (3602, 5909)]