20749887

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1699}}^1$

素因数の和:1787

約数の個数: 24

約数和(自身を含む): 31824000

約数和(自身を除く): 11074113

約数列:

[1, 3, 9, 23, 59, 69, 177, 207, 531, 1357, 1699, 4071, 5097, 12213, 15291, 39077, 100241, 117231, 300723, 351693, 902169, 2305543, 6916629, 20749887]

約数ペア:

[(1, 20749887), (3, 6916629), (9, 2305543), (23, 902169), (59, 351693), (69, 300723), (177, 117231), (207, 100241), (531, 39077), (1357, 15291), (1699, 12213), (4071, 5097)]