31220791

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 38085120

約数和(自身を除く): 6864329

約数列:

[1, 7, 29, 49, 127, 173, 203, 889, 1211, 1421, 3683, 5017, 6223, 8477, 21971, 25781, 35119, 153797, 180467, 245833, 637159, 1076579, 4460113, 31220791]

約数ペア:

[(1, 31220791), (7, 4460113), (29, 1076579), (49, 637159), (127, 245833), (173, 180467), (203, 153797), (889, 35119), (1211, 25781), (1421, 21971), (3683, 8477), (5017, 6223)]