28321251

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{7451}}^1$

素因数の和:7642

約数の個数: 16

約数和(自身を含む): 43400448

約数和(自身を除く): 15079197

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 7451, 22353, 52157, 156471, 1348631, 4045893, 9440417, 28321251]

約数ペア:

[(1, 28321251), (3, 9440417), (7, 4045893), (21, 1348631), (181, 156471), (543, 52157), (1267, 22353), (3801, 7451)]