21151518

素因数分解:

$2^1\times 3^1\times {\mathrm{557}}^1\times {\mathrm{6329}}^1$

素因数の和:6891

約数の個数: 16

約数和(自身を含む): 42385680

約数和(自身を除く): 21234162

約数列:

[1, 2, 3, 6, 557, 1114, 1671, 3342, 6329, 12658, 18987, 37974, 3525253, 7050506, 10575759, 21151518]

約数ペア:

[(1, 21151518), (2, 10575759), (3, 7050506), (6, 3525253), (557, 37974), (1114, 18987), (1671, 12658), (3342, 6329)]