204890399

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{11159}}^1$

素因数の和:11270

約数の個数: 16

約数和(自身を含む): 243555840

約数和(自身を除く): 38665441

約数列:

[1, 7, 43, 61, 301, 427, 2623, 11159, 18361, 78113, 479837, 680699, 3358859, 4764893, 29270057, 204890399]

約数ペア:

[(1, 204890399), (7, 29270057), (43, 4764893), (61, 3358859), (301, 680699), (427, 479837), (2623, 78113), (11159, 18361)]