12815415

素因数分解:

$3^4\times 5^1\times {\mathrm{31643}}^1$

素因数の和:31660

約数の個数: 20

約数和(自身を含む): 22973544

約数和(自身を除く): 10158129

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31643, 94929, 158215, 284787, 474645, 854361, 1423935, 2563083, 4271805, 12815415]

約数ペア:

[(1, 12815415), (3, 4271805), (5, 2563083), (9, 1423935), (15, 854361), (27, 474645), (45, 284787), (81, 158215), (135, 94929), (405, 31643)]