21133060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81281}}^1$

素因数の和:81303

約数の個数: 24

約数和(自身を含む): 47793816

約数和(自身を除く): 26660756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 81281, 162562, 325124, 406405, 812810, 1056653, 1625620, 2113306, 4226612, 5283265, 10566530, 21133060]

約数ペア:

[(1, 21133060), (2, 10566530), (4, 5283265), (5, 4226612), (10, 2113306), (13, 1625620), (20, 1056653), (26, 812810), (52, 406405), (65, 325124), (130, 162562), (260, 81281)]