81177663

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{13469}}^1$

素因数の和:13527

約数の個数: 24

約数和(自身を含む): 128988720

約数和(自身を除く): 47811057

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 13469, 40407, 94283, 282849, 552229, 659981, 1656687, 1979943, 3865603, 11596809, 27059221, 81177663]

約数ペア:

[(1, 81177663), (3, 27059221), (7, 11596809), (21, 3865603), (41, 1979943), (49, 1656687), (123, 659981), (147, 552229), (287, 282849), (861, 94283), (2009, 40407), (6027, 13469)]