20427253

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4349}}^1$

素因数の和:4428

約数の個数: 16

約数和(自身を含む): 25891200

約数和(自身を除く): 5463947

約数列:

[1, 7, 11, 61, 77, 427, 671, 4349, 4697, 30443, 47839, 265289, 334873, 1857023, 2918179, 20427253]

約数ペア:

[(1, 20427253), (7, 2918179), (11, 1857023), (61, 334873), (77, 265289), (427, 47839), (671, 30443), (4349, 4697)]