21107723

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6269}}^1$

素因数の和:6326

約数の個数: 16

約数和(自身を含む): 26685120

約数和(自身を除く): 5577397

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 6269, 43883, 81497, 231953, 570479, 1623671, 3015389, 21107723]

約数ペア:

[(1, 21107723), (7, 3015389), (13, 1623671), (37, 570479), (91, 231953), (259, 81497), (481, 43883), (3367, 6269)]