278987969

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{17293}}^1$

素因数の和:17396

約数の個数: 16

約数和(自身を含む): 322498512

約数和(自身を除く): 43510543

約数列:

[1, 13, 17, 73, 221, 949, 1241, 16133, 17293, 224809, 293981, 1262389, 3821753, 16411057, 21460613, 278987969]

約数ペア:

[(1, 278987969), (13, 21460613), (17, 16411057), (73, 3821753), (221, 1262389), (949, 293981), (1241, 224809), (16133, 17293)]