21610075

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 28435680

約数和(自身を除く): 6825605

約数列:

[1, 5, 25, 29, 41, 145, 205, 725, 727, 1025, 1189, 3635, 5945, 18175, 21083, 29725, 29807, 105415, 149035, 527075, 745175, 864403, 4322015, 21610075]

約数ペア:

[(1, 21610075), (5, 4322015), (25, 864403), (29, 745175), (41, 527075), (145, 149035), (205, 105415), (725, 29807), (727, 29725), (1025, 21083), (1189, 18175), (3635, 5945)]