31381857

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3083}}^1$

素因数の和:3134

約数の個数: 32

約数和(自身を含む): 51811200

約数和(自身を除く): 20429343

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 261, 351, 377, 783, 1131, 3083, 3393, 9249, 10179, 27747, 40079, 83241, 89407, 120237, 268221, 360711, 804663, 1082133, 1162291, 2413989, 3486873, 10460619, 31381857]

約数ペア:

[(1, 31381857), (3, 10460619), (9, 3486873), (13, 2413989), (27, 1162291), (29, 1082133), (39, 804663), (87, 360711), (117, 268221), (261, 120237), (351, 89407), (377, 83241), (783, 40079), (1131, 27747), (3083, 10179), (3393, 9249)]