81157791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1361}}^1$

素因数の和:1527

約数の個数: 32

約数和(自身を含む): 128136960

約数和(自身を除く): 46979169

約数列:

[1, 3, 11, 13, 33, 39, 139, 143, 417, 429, 1361, 1529, 1807, 4083, 4587, 5421, 14971, 17693, 19877, 44913, 53079, 59631, 189179, 194623, 567537, 583869, 2080969, 2459327, 6242907, 7377981, 27052597, 81157791]

約数ペア:

[(1, 81157791), (3, 27052597), (11, 7377981), (13, 6242907), (33, 2459327), (39, 2080969), (139, 583869), (143, 567537), (417, 194623), (429, 189179), (1361, 59631), (1529, 53079), (1807, 44913), (4083, 19877), (4587, 17693), (5421, 14971)]