18621495

素因数分解:

$3^4\times 5^1\times {\mathrm{45979}}^1$

素因数の和:45996

約数の個数: 20

約数和(自身を含む): 33381480

約数和(自身を除く): 14759985

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45979, 137937, 229895, 413811, 689685, 1241433, 2069055, 3724299, 6207165, 18621495]

約数ペア:

[(1, 18621495), (3, 6207165), (5, 3724299), (9, 2069055), (15, 1241433), (27, 689685), (45, 413811), (81, 229895), (135, 137937), (405, 45979)]