28200263

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18229}}^1$

素因数の和:18266

約数の個数: 16

約数和(自身を含む): 36751680

約数和(自身を除く): 8551417

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 18229, 127603, 236977, 309893, 1658839, 2169251, 4028609, 28200263]

約数ペア:

[(1, 28200263), (7, 4028609), (13, 2169251), (17, 1658839), (91, 309893), (119, 236977), (221, 127603), (1547, 18229)]