691942

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 16

約数和(自身を含む): 1108800

約数和(自身を除く): 416858

約数列:

[1, 2, 19, 38, 131, 139, 262, 278, 2489, 2641, 4978, 5282, 18209, 36418, 345971, 691942]

約数ペア:

[(1, 691942), (2, 345971), (19, 36418), (38, 18209), (131, 5282), (139, 4978), (262, 2641), (278, 2489)]