81121389

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 116146176

約数和(自身を除く): 35024787

約数列:

[1, 3, 31, 47, 67, 93, 141, 201, 277, 831, 1457, 2077, 3149, 4371, 6231, 8587, 9447, 13019, 18559, 25761, 39057, 55677, 97619, 292857, 403589, 575329, 872273, 1210767, 1725987, 2616819, 27040463, 81121389]

約数ペア:

[(1, 81121389), (3, 27040463), (31, 2616819), (47, 1725987), (67, 1210767), (93, 872273), (141, 575329), (201, 403589), (277, 292857), (831, 97619), (1457, 55677), (2077, 39057), (3149, 25761), (4371, 18559), (6231, 13019), (8587, 9447)]