257130381

素因数分解:

$3^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1\times {\mathrm{1249}}^1$

素因数の和:1836

約数の個数: 16

約数和(自身を含む): 346040000

約数和(自身を除く): 88909619

約数列:

[1, 3, 163, 421, 489, 1249, 1263, 3747, 68623, 203587, 205869, 525829, 610761, 1577487, 85710127, 257130381]

約数ペア:

[(1, 257130381), (3, 85710127), (163, 1577487), (421, 610761), (489, 525829), (1249, 205869), (1263, 203587), (3747, 68623)]