31322781

素因数分解:

$3^4\times 7^1\times {\mathrm{55243}}^1$

素因数の和:55262

約数の個数: 20

約数和(自身を含む): 53476192

約数和(自身を除く): 22153411

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 55243, 165729, 386701, 497187, 1160103, 1491561, 3480309, 4474683, 10440927, 31322781]

約数ペア:

[(1, 31322781), (3, 10440927), (7, 4474683), (9, 3480309), (21, 1491561), (27, 1160103), (63, 497187), (81, 386701), (189, 165729), (567, 55243)]