257519806

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{16097}}^1$

素因数の和:16539

約数の個数: 16

約数和(自身を含む): 407601360

約数和(自身を除く): 150081554

約数列:

[1, 2, 19, 38, 421, 842, 7999, 15998, 16097, 32194, 305843, 611686, 6776837, 13553674, 128759903, 257519806]

約数ペア:

[(1, 257519806), (2, 128759903), (19, 13553674), (38, 6776837), (421, 611686), (842, 305843), (7999, 32194), (15998, 16097)]