81691467

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1747}}^1$

素因数の和:1883

約数の個数: 32

約数和(自身を含む): 129212160

約数和(自身を除く): 47520693

約数列:

[1, 3, 11, 13, 33, 39, 109, 143, 327, 429, 1199, 1417, 1747, 3597, 4251, 5241, 15587, 19217, 22711, 46761, 57651, 68133, 190423, 249821, 571269, 749463, 2094653, 2475499, 6283959, 7426497, 27230489, 81691467]

約数ペア:

[(1, 81691467), (3, 27230489), (11, 7426497), (13, 6283959), (33, 2475499), (39, 2094653), (109, 749463), (143, 571269), (327, 249821), (429, 190423), (1199, 68133), (1417, 57651), (1747, 46761), (3597, 22711), (4251, 19217), (5241, 15587)]