21230680

素因数分解:

$2^3\times 5^1\times {\mathrm{530767}}^1$

素因数の和:530778

約数の個数: 16

約数和(自身を含む): 47769120

約数和(自身を除く): 26538440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 530767, 1061534, 2123068, 2653835, 4246136, 5307670, 10615340, 21230680]

約数ペア:

[(1, 21230680), (2, 10615340), (4, 5307670), (5, 4246136), (8, 2653835), (10, 2123068), (20, 1061534), (40, 530767)]