51581439

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{62981}}^1$

素因数の和:63007

約数の個数: 24

約数和(自身を含む): 91701792

約数和(自身を除く): 40120353

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 62981, 188943, 440867, 566829, 818753, 1322601, 2456259, 3967803, 5731271, 7368777, 17193813, 51581439]

約数ペア:

[(1, 51581439), (3, 17193813), (7, 7368777), (9, 5731271), (13, 3967803), (21, 2456259), (39, 1322601), (63, 818753), (91, 566829), (117, 440867), (273, 188943), (819, 62981)]