20659718

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{2909}}^1$

素因数の和:3031

約数の個数: 16

約数和(自身を含む): 32056560

約数和(自身を除く): 11396842

約数列:

[1, 2, 53, 67, 106, 134, 2909, 3551, 5818, 7102, 154177, 194903, 308354, 389806, 10329859, 20659718]

約数ペア:

[(1, 20659718), (2, 10329859), (53, 389806), (67, 308354), (106, 194903), (134, 154177), (2909, 7102), (3551, 5818)]