17999317

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{15971}}^1$

素因数の和:16008

約数の個数: 12

約数和(自身を含む): 21849696

約数和(自身を除く): 3850379

約数列:

[1, 7, 23, 49, 161, 1127, 15971, 111797, 367333, 782579, 2571331, 17999317]

約数ペア:

[(1, 17999317), (7, 2571331), (23, 782579), (49, 367333), (161, 111797), (1127, 15971)]