21344229

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{2609}}^1$

素因数の和:2722

約数の個数: 20

約数和(自身を含む): 32212620

約数和(自身を除く): 10868391

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2609, 2727, 7827, 8181, 23481, 70443, 211329, 263509, 790527, 2371581, 7114743, 21344229]

約数ペア:

[(1, 21344229), (3, 7114743), (9, 2371581), (27, 790527), (81, 263509), (101, 211329), (303, 70443), (909, 23481), (2609, 8181), (2727, 7827)]