31831839

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3943}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 53007360

約数和(自身を除く): 21175521

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2691, 3943, 8073, 11829, 35487, 51259, 90689, 106461, 153777, 272067, 461331, 816201, 1178957, 1383993, 2448603, 3536871, 10610613, 31831839]

約数ペア:

[(1, 31831839), (3, 10610613), (9, 3536871), (13, 2448603), (23, 1383993), (27, 1178957), (39, 816201), (69, 461331), (117, 272067), (207, 153777), (299, 106461), (351, 90689), (621, 51259), (897, 35487), (2691, 11829), (3943, 8073)]