20677251

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7753}}^1$

素因数の和:7890

約数の個数: 16

約数和(自身を含む): 31760384

約数和(自身を除く): 11083133

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7753, 23259, 54271, 162813, 984631, 2953893, 6892417, 20677251]

約数ペア:

[(1, 20677251), (3, 6892417), (7, 2953893), (21, 984631), (127, 162813), (381, 54271), (889, 23259), (2667, 7753)]