21949317

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6469}}^1$

素因数の和:6517

約数の個数: 24

約数和(自身を含む): 35326200

約数和(自身を除く): 13376883

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 6469, 19407, 58221, 84097, 187601, 252291, 562803, 756873, 1688409, 2438813, 7316439, 21949317]

約数ペア:

[(1, 21949317), (3, 7316439), (9, 2438813), (13, 1688409), (29, 756873), (39, 562803), (87, 252291), (117, 187601), (261, 84097), (377, 58221), (1131, 19407), (3393, 6469)]