21580898

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{3911}}^1$

素因数の和:4033

約数の個数: 16

約数和(自身を含む): 33799680

約数和(自身を除く): 12218782

約数列:

[1, 2, 31, 62, 89, 178, 2759, 3911, 5518, 7822, 121241, 242482, 348079, 696158, 10790449, 21580898]

約数ペア:

[(1, 21580898), (2, 10790449), (31, 696158), (62, 348079), (89, 242482), (178, 121241), (2759, 7822), (3911, 5518)]