21044930

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12911}}^1$

素因数の和:13081

約数の個数: 16

約数和(自身を含む): 38116224

約数和(自身を除く): 17071294

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 12911, 25822, 64555, 129110, 2104493, 4208986, 10522465, 21044930]

約数ペア:

[(1, 21044930), (2, 10522465), (5, 4208986), (10, 2104493), (163, 129110), (326, 64555), (815, 25822), (1630, 12911)]