640833121

素因数分解:

${\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{29101}}^1$

素因数の和:29200

約数の個数: 12

約数和(自身を含む): 687447444

約数和(自身を除く): 46614323

約数列:

[1, 19, 61, 361, 1159, 22021, 29101, 552919, 1775161, 10505461, 33728059, 640833121]

約数ペア:

[(1, 640833121), (19, 33728059), (61, 10505461), (361, 1775161), (1159, 552919), (22021, 29101)]