28321713

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{4451}}^1$

素因数の和:4565

約数の個数: 24

約数和(自身を含む): 47226816

約数和(自身を除く): 18905103

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 4451, 6363, 13353, 31157, 40059, 93471, 280413, 449551, 1348653, 3146857, 4045959, 9440571, 28321713]

約数ペア:

[(1, 28321713), (3, 9440571), (7, 4045959), (9, 3146857), (21, 1348653), (63, 449551), (101, 280413), (303, 93471), (707, 40059), (909, 31157), (2121, 13353), (4451, 6363)]