20471085

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9679}}^1$

素因数の和:9737

約数の個数: 24

約数和(自身を含む): 36241920

約数和(自身を除く): 15770835

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9679, 29037, 48395, 87111, 145185, 435555, 454913, 1364739, 2274565, 4094217, 6823695, 20471085]

約数ペア:

[(1, 20471085), (3, 6823695), (5, 4094217), (9, 2274565), (15, 1364739), (45, 454913), (47, 435555), (141, 145185), (235, 87111), (423, 48395), (705, 29037), (2115, 9679)]