7661385

素因数分解:

$3^4\times 5^1\times {\mathrm{18917}}^1$

素因数の和:18934

約数の個数: 20

約数和(自身を含む): 13734468

約数和(自身を除く): 6073083

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 18917, 56751, 94585, 170253, 283755, 510759, 851265, 1532277, 2553795, 7661385]

約数ペア:

[(1, 7661385), (3, 2553795), (5, 1532277), (9, 851265), (15, 510759), (27, 283755), (45, 170253), (81, 94585), (135, 56751), (405, 18917)]