81758727

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{16547}}^1$

素因数の和:16620

約数の個数: 20

約数和(自身を含む): 124143096

約数和(自身を除く): 42384369

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 16547, 49641, 148923, 446769, 1009367, 1340307, 3028101, 9084303, 27252909, 81758727]

約数ペア:

[(1, 81758727), (3, 27252909), (9, 9084303), (27, 3028101), (61, 1340307), (81, 1009367), (183, 446769), (549, 148923), (1647, 49641), (4941, 16547)]