20178859516

素因数分解:

$2^2\times {\mathrm{4157}}^1\times {\mathrm{1213547}}^1$

素因数の和:1217708

約数の個数: 12

約数和(自身を含む): 35321528088

約数和(自身を除く): 15142668572

約数列:

[1, 2, 4, 4157, 8314, 16628, 1213547, 2427094, 4854188, 5044714879, 10089429758, 20178859516]

約数ペア:

[(1, 20178859516), (2, 10089429758), (4, 5044714879), (4157, 4854188), (8314, 2427094), (16628, 1213547)]