21048430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{161911}}^1$

素因数の和:161931

約数の個数: 16

約数和(自身を含む): 40801824

約数和(自身を除く): 19753394

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 161911, 323822, 809555, 1619110, 2104843, 4209686, 10524215, 21048430]

約数ペア:

[(1, 21048430), (2, 10524215), (5, 4209686), (10, 2104843), (13, 1619110), (26, 809555), (65, 323822), (130, 161911)]