21000681209

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{252409}}^1$

素因数の和:252608

約数の個数: 16

約数和(自身を含む): 23019792000

約数和(自身を除く): 2019110791

約数列:

[1, 19, 29, 151, 551, 2869, 4379, 83201, 252409, 4795771, 7319861, 38113759, 139077359, 724161421, 1105299011, 21000681209]

約数ペア:

[(1, 21000681209), (19, 1105299011), (29, 724161421), (151, 139077359), (551, 38113759), (2869, 7319861), (4379, 4795771), (83201, 252409)]