20411145

素因数分解:

$3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1109}}^1$

素因数の和:1529

約数の個数: 24

約数和(自身を含む): 35497800

約数和(自身を除く): 15086655

約数列:

[1, 3, 5, 9, 15, 45, 409, 1109, 1227, 2045, 3327, 3681, 5545, 6135, 9981, 16635, 18405, 49905, 453581, 1360743, 2267905, 4082229, 6803715, 20411145]

約数ペア:

[(1, 20411145), (3, 6803715), (5, 4082229), (9, 2267905), (15, 1360743), (45, 453581), (409, 49905), (1109, 18405), (1227, 16635), (2045, 9981), (3327, 6135), (3681, 5545)]