71551431

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2381}}^1$

素因数の和:2453

約数の個数: 40

約数和(自身を含む): 124511904

約数和(自身を除く): 52960473

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1113, 1431, 2381, 3339, 4293, 7143, 10017, 16667, 21429, 30051, 50001, 64287, 126193, 150003, 192861, 378579, 450009, 883351, 1135737, 1350027, 2650053, 3407211, 7950159, 10221633, 23850477, 71551431]

約数ペア:

[(1, 71551431), (3, 23850477), (7, 10221633), (9, 7950159), (21, 3407211), (27, 2650053), (53, 1350027), (63, 1135737), (81, 883351), (159, 450009), (189, 378579), (371, 192861), (477, 150003), (567, 126193), (1113, 64287), (1431, 50001), (2381, 30051), (3339, 21429), (4293, 16667), (7143, 10017)]