289771874

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{291521}}^1$

素因数の和:291601

約数の個数: 16

約数和(自身を含む): 503750016

約数和(自身を除く): 213978142

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 291521, 583042, 2040647, 4081294, 20697991, 41395982, 144885937, 289771874]

約数ペア:

[(1, 289771874), (2, 144885937), (7, 41395982), (14, 20697991), (71, 4081294), (142, 2040647), (497, 583042), (994, 291521)]