21868221

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{10369}}^1$

素因数の和:10428

約数の個数: 16

約数和(自身を含む): 31524800

約数和(自身を除く): 9656579

約数列:

[1, 3, 19, 37, 57, 111, 703, 2109, 10369, 31107, 197011, 383653, 591033, 1150959, 7289407, 21868221]

約数ペア:

[(1, 21868221), (3, 7289407), (19, 1150959), (37, 591033), (57, 383653), (111, 197011), (703, 31107), (2109, 10369)]