20408367

素因数分解:

$3^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{2081}}^1$

素因数の和:2558

約数の個数: 16

約数和(自身を含む): 31180032

約数和(自身を除く): 10771665

約数列:

[1, 3, 7, 21, 467, 1401, 2081, 3269, 6243, 9807, 14567, 43701, 971827, 2915481, 6802789, 20408367]

約数ペア:

[(1, 20408367), (3, 6802789), (7, 2915481), (21, 971827), (467, 43701), (1401, 14567), (2081, 9807), (3269, 6243)]