21776410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30671}}^1$

素因数の和:30749

約数の個数: 16

約数和(自身を含む): 39750912

約数和(自身を除く): 17974502

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 30671, 61342, 153355, 306710, 2177641, 4355282, 10888205, 21776410]

約数ペア:

[(1, 21776410), (2, 10888205), (5, 4355282), (10, 2177641), (71, 306710), (142, 153355), (355, 61342), (710, 30671)]