18621795

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28871}}^1$

素因数の和:28922

約数の個数: 16

約数和(自身を含む): 30488832

約数和(自身を除く): 11867037

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 28871, 86613, 144355, 433065, 1241453, 3724359, 6207265, 18621795]

約数ペア:

[(1, 18621795), (3, 6207265), (5, 3724359), (15, 1241453), (43, 433065), (129, 144355), (215, 86613), (645, 28871)]