20318715

素因数分解:

$3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2551}}^1$

素因数の和:2624

約数の個数: 32

約数和(自身を含む): 36748800

約数和(自身を除く): 16430085

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 135, 177, 295, 531, 885, 1593, 2551, 2655, 7653, 7965, 12755, 22959, 38265, 68877, 114795, 150509, 344385, 451527, 752545, 1354581, 2257635, 4063743, 6772905, 20318715]

約数ペア:

[(1, 20318715), (3, 6772905), (5, 4063743), (9, 2257635), (15, 1354581), (27, 752545), (45, 451527), (59, 344385), (135, 150509), (177, 114795), (295, 68877), (531, 38265), (885, 22959), (1593, 12755), (2551, 7965), (2655, 7653)]