21811959

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4547}}^1$

素因数の和:4607

約数の個数: 24

約数和(自身を含む): 34764912

約数和(自身を除く): 12952953

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4547, 4797, 13641, 40923, 59111, 177333, 186427, 531999, 559281, 1677843, 2423551, 7270653, 21811959]

約数ペア:

[(1, 21811959), (3, 7270653), (9, 2423551), (13, 1677843), (39, 559281), (41, 531999), (117, 186427), (123, 177333), (369, 59111), (533, 40923), (1599, 13641), (4547, 4797)]