81801433

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{347}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 101401632

約数和(自身を除く): 19600199

約数列:

[1, 7, 17, 49, 119, 283, 347, 833, 1981, 2429, 4811, 5899, 13867, 17003, 33677, 41293, 98201, 235739, 289051, 687407, 1669417, 4811849, 11685919, 81801433]

約数ペア:

[(1, 81801433), (7, 11685919), (17, 4811849), (49, 1669417), (119, 687407), (283, 289051), (347, 235739), (833, 98201), (1981, 41293), (2429, 33677), (4811, 17003), (5899, 13867)]