21970610

素因数分解:

$2^1\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{2131}}^1$

素因数の和:3169

約数の個数: 16

約数和(自身を含む): 39604032

約数和(自身を除く): 17633422

約数列:

[1, 2, 5, 10, 1031, 2062, 2131, 4262, 5155, 10310, 10655, 21310, 2197061, 4394122, 10985305, 21970610]

約数ペア:

[(1, 21970610), (2, 10985305), (5, 4394122), (10, 2197061), (1031, 21310), (2062, 10655), (2131, 10310), (4262, 5155)]