861615

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 1533168

約数和(自身を除く): 671553

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 467, 615, 1401, 1845, 2335, 4203, 7005, 19147, 21015, 57441, 95735, 172323, 287205, 861615]

約数ペア:

[(1, 861615), (3, 287205), (5, 172323), (9, 95735), (15, 57441), (41, 21015), (45, 19147), (123, 7005), (205, 4203), (369, 2335), (467, 1845), (615, 1401)]