18201897

素因数分解:

$3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{929}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 30176640

約数和(自身を除く): 11974743

約数列:

[1, 3, 7, 9, 21, 63, 311, 929, 933, 2177, 2787, 2799, 6503, 6531, 8361, 19509, 19593, 58527, 288919, 866757, 2022433, 2600271, 6067299, 18201897]

約数ペア:

[(1, 18201897), (3, 6067299), (7, 2600271), (9, 2022433), (21, 866757), (63, 288919), (311, 58527), (929, 19593), (933, 19509), (2177, 8361), (2787, 6531), (2799, 6503)]