18724527

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7457}}^1$

素因数の和:7500

約数の個数: 20

約数和(自身を含む): 28877376

約数和(自身を除く): 10152849

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7457, 22371, 67113, 201339, 231167, 604017, 693501, 2080503, 6241509, 18724527]

約数ペア:

[(1, 18724527), (3, 6241509), (9, 2080503), (27, 693501), (31, 604017), (81, 231167), (93, 201339), (279, 67113), (837, 22371), (2511, 7457)]