20413899

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5573}}^1$

素因数の和:5627

約数の個数: 24

約数和(自身を含む): 33042672

約数和(自身を除く): 12628773

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 5573, 16719, 50157, 61303, 183909, 206201, 551727, 618603, 1855809, 2268211, 6804633, 20413899]

約数ペア:

[(1, 20413899), (3, 6804633), (9, 2268211), (11, 1855809), (33, 618603), (37, 551727), (99, 206201), (111, 183909), (333, 61303), (407, 50157), (1221, 16719), (3663, 5573)]