21970564

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71333}}^1$

素因数の和:71355

約数の個数: 24

約数和(自身を含む): 47936448

約数和(自身を除く): 25965884

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 71333, 142666, 285332, 499331, 784663, 998662, 1569326, 1997324, 3138652, 5492641, 10985282, 21970564]

約数ペア:

[(1, 21970564), (2, 10985282), (4, 5492641), (7, 3138652), (11, 1997324), (14, 1569326), (22, 998662), (28, 784663), (44, 499331), (77, 285332), (154, 142666), (308, 71333)]