19878946

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{3109}}^1$

素因数の和:3273

約数の個数: 16

約数和(自身を含む): 31348800

約数和(自身を除く): 11469854

約数列:

[1, 2, 23, 46, 139, 278, 3109, 3197, 6218, 6394, 71507, 143014, 432151, 864302, 9939473, 19878946]

約数ペア:

[(1, 19878946), (2, 9939473), (23, 864302), (46, 432151), (139, 143014), (278, 71507), (3109, 6394), (3197, 6218)]