21722456

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9461}}^1$

素因数の和:9515

約数の個数: 32

約数和(自身を含む): 47688480

約数和(自身を除く): 25966024

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9461, 18922, 37844, 66227, 75688, 132454, 264908, 387901, 529816, 775802, 1551604, 2715307, 3103208, 5430614, 10861228, 21722456]

約数ペア:

[(1, 21722456), (2, 10861228), (4, 5430614), (7, 3103208), (8, 2715307), (14, 1551604), (28, 775802), (41, 529816), (56, 387901), (82, 264908), (164, 132454), (287, 75688), (328, 66227), (574, 37844), (1148, 18922), (2296, 9461)]