1561130641

素因数分解:

$7^2\times {\mathrm{1609}}^1\times {\mathrm{19801}}^1$

素因数の和:21424

約数の個数: 12

約数和(自身を含む): 1817229540

約数和(自身を除く): 256098899

約数列:

[1, 7, 49, 1609, 11263, 19801, 78841, 138607, 970249, 31859809, 223018663, 1561130641]

約数ペア:

[(1, 1561130641), (7, 223018663), (49, 31859809), (1609, 970249), (11263, 138607), (19801, 78841)]