12912939

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{12263}}^1$

素因数の和:12288

約数の個数: 20

約数和(自身を含む): 20775216

約数和(自身を除く): 7862277

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 12263, 36789, 110367, 159419, 331101, 478257, 993303, 1434771, 4304313, 12912939]

約数ペア:

[(1, 12912939), (3, 4304313), (9, 1434771), (13, 993303), (27, 478257), (39, 331101), (81, 159419), (117, 110367), (351, 36789), (1053, 12263)]