18118265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 24938496

約数和(自身を除く): 6820231

約数列:

[1, 5, 11, 43, 47, 55, 163, 215, 235, 473, 517, 815, 1793, 2021, 2365, 2585, 7009, 7661, 8965, 10105, 22231, 35045, 38305, 77099, 84271, 111155, 329423, 385495, 421355, 1647115, 3623653, 18118265]

約数ペア:

[(1, 18118265), (5, 3623653), (11, 1647115), (43, 421355), (47, 385495), (55, 329423), (163, 111155), (215, 84271), (235, 77099), (473, 38305), (517, 35045), (815, 22231), (1793, 10105), (2021, 8965), (2365, 7661), (2585, 7009)]