21529473

素因数分解:

$3^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{877}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 33630912

約数和(自身を除く): 12101439

約数列:

[1, 3, 7, 21, 49, 147, 167, 501, 877, 1169, 2631, 3507, 6139, 8183, 18417, 24549, 42973, 128919, 146459, 439377, 1025213, 3075639, 7176491, 21529473]

約数ペア:

[(1, 21529473), (3, 7176491), (7, 3075639), (21, 1025213), (49, 439377), (147, 146459), (167, 128919), (501, 42973), (877, 24549), (1169, 18417), (2631, 8183), (3507, 6139)]