201722468

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{139697}}^1$

素因数の和:139739

約数の個数: 18

約数和(自身を含む): 372574566

約数和(自身を除く): 170852098

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 139697, 279394, 558788, 2654243, 5308486, 10616972, 50430617, 100861234, 201722468]

約数ペア:

[(1, 201722468), (2, 100861234), (4, 50430617), (19, 10616972), (38, 5308486), (76, 2654243), (361, 558788), (722, 279394), (1444, 139697)]