21974872

素因数分解:

$2^3\times {\mathrm{1289}}^1\times {\mathrm{2131}}^1$

素因数の和:3426

約数の個数: 16

約数和(自身を含む): 41254200

約数和(自身を除く): 19279328

約数列:

[1, 2, 4, 8, 1289, 2131, 2578, 4262, 5156, 8524, 10312, 17048, 2746859, 5493718, 10987436, 21974872]

約数ペア:

[(1, 21974872), (2, 10987436), (4, 5493718), (8, 2746859), (1289, 17048), (2131, 10312), (2578, 8524), (4262, 5156)]