81780327

素因数分解:

$3^3\times {\mathrm{313}}^1\times {\mathrm{9677}}^1$

素因数の和:9999

約数の個数: 16

約数和(自身を含む): 121555680

約数和(自身を除く): 39775353

約数列:

[1, 3, 9, 27, 313, 939, 2817, 8451, 9677, 29031, 87093, 261279, 3028901, 9086703, 27260109, 81780327]

約数ペア:

[(1, 81780327), (3, 27260109), (9, 9086703), (27, 3028901), (313, 261279), (939, 87093), (2817, 29031), (8451, 9677)]