21825890

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4861}}^1$

素因数の和:5317

約数の個数: 16

約数和(自身を含む): 39382200

約数和(自身を除く): 17556310

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 4861, 9722, 24305, 48610, 2182589, 4365178, 10912945, 21825890]

約数ペア:

[(1, 21825890), (2, 10912945), (5, 4365178), (10, 2182589), (449, 48610), (898, 24305), (2245, 9722), (4490, 4861)]