20552791

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{379}}^1$

素因数の和:574

約数の個数: 16

約数和(自身を含む): 24125440

約数和(自身を除く): 3572649

約数列:

[1, 7, 61, 127, 379, 427, 889, 2653, 7747, 23119, 48133, 54229, 161833, 336931, 2936113, 20552791]

約数ペア:

[(1, 20552791), (7, 2936113), (61, 336931), (127, 161833), (379, 54229), (427, 48133), (889, 23119), (2653, 7747)]