12405555

素因数分解:

$3^4\times 5^1\times {\mathrm{30631}}^1$

素因数の和:30648

約数の個数: 20

約数和(自身を含む): 22238832

約数和(自身を除く): 9833277

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 30631, 91893, 153155, 275679, 459465, 827037, 1378395, 2481111, 4135185, 12405555]

約数ペア:

[(1, 12405555), (3, 4135185), (5, 2481111), (9, 1378395), (15, 827037), (27, 459465), (45, 275679), (81, 153155), (135, 91893), (405, 30631)]