21820312

素因数分解:

$2^3\times {\mathrm{53}}^2\times {\mathrm{971}}^1$

素因数の和:1083

約数の個数: 24

約数和(自身を含む): 41742540

約数和(自身を除く): 19922228

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 971, 1942, 2809, 3884, 5618, 7768, 11236, 22472, 51463, 102926, 205852, 411704, 2727539, 5455078, 10910156, 21820312]

約数ペア:

[(1, 21820312), (2, 10910156), (4, 5455078), (8, 2727539), (53, 411704), (106, 205852), (212, 102926), (424, 51463), (971, 22472), (1942, 11236), (2809, 7768), (3884, 5618)]