15761385

素因数分解:

$3^4\times 5^1\times {\mathrm{38917}}^1$

素因数の和:38934

約数の個数: 20

約数和(自身を含む): 28254468

約数和(自身を除く): 12493083

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38917, 116751, 194585, 350253, 583755, 1050759, 1751265, 3152277, 5253795, 15761385]

約数ペア:

[(1, 15761385), (3, 5253795), (5, 3152277), (9, 1751265), (15, 1050759), (27, 583755), (45, 350253), (81, 194585), (135, 116751), (405, 38917)]