21326812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3833}}^1$

素因数の和:3957

約数の個数: 24

約数和(自身を含む): 40579056

約数和(自身を除く): 19252244

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3833, 5564, 7666, 15332, 49829, 99658, 199316, 410131, 820262, 1640524, 5331703, 10663406, 21326812]

約数ペア:

[(1, 21326812), (2, 10663406), (4, 5331703), (13, 1640524), (26, 820262), (52, 410131), (107, 199316), (214, 99658), (428, 49829), (1391, 15332), (2782, 7666), (3833, 5564)]