257432847

素因数分解:

$3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{38671}}^1$

素因数の和:38998

約数の個数: 16

約数和(自身を含む): 393526272

約数和(自身を除く): 136093425

約数列:

[1, 3, 7, 21, 317, 951, 2219, 6657, 38671, 116013, 270697, 812091, 12258707, 36776121, 85810949, 257432847]

約数ペア:

[(1, 257432847), (3, 85810949), (7, 36776121), (21, 12258707), (317, 812091), (951, 270697), (2219, 116013), (6657, 38671)]