217080209

素因数分解:

${\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 226048320

約数和(自身を除く): 8968111

約数列:

[1, 53, 101, 107, 379, 5353, 5671, 10807, 20087, 38279, 40553, 572771, 2028787, 2149309, 4095853, 217080209]

約数ペア:

[(1, 217080209), (53, 4095853), (101, 2149309), (107, 2028787), (379, 572771), (5353, 40553), (5671, 38279), (10807, 20087)]