21221313

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{4663}}^1$

素因数の和:4744

約数の個数: 16

約数和(自身を含む): 29774976

約数和(自身を除く): 8553663

約数列:

[1, 3, 37, 41, 111, 123, 1517, 4551, 4663, 13989, 172531, 191183, 517593, 573549, 7073771, 21221313]

約数ペア:

[(1, 21221313), (3, 7073771), (37, 573549), (41, 517593), (111, 191183), (123, 172531), (1517, 13989), (4551, 4663)]