21610690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52709}}^1$

素因数の和:52757

約数の個数: 16

約数和(自身を含む): 39848760

約数和(自身を除く): 18238070

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52709, 105418, 263545, 527090, 2161069, 4322138, 10805345, 21610690]

約数ペア:

[(1, 21610690), (2, 10805345), (5, 4322138), (10, 2161069), (41, 527090), (82, 263545), (205, 105418), (410, 52709)]