2021193225

素因数分解:

$3^2\times 5^2\times {\mathrm{8983081}}^1$

素因数の和:8983097

約数の個数: 18

約数和(自身を含む): 3620182046

約数和(自身を除く): 1598988821

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 8983081, 26949243, 44915405, 80847729, 134746215, 224577025, 404238645, 673731075, 2021193225]

約数ペア:

[(1, 2021193225), (3, 673731075), (5, 404238645), (9, 224577025), (15, 134746215), (25, 80847729), (45, 44915405), (75, 26949243), (225, 8983081)]