20035561

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 25510464

約数和(自身を除く): 5474903

約数列:

[1, 7, 13, 49, 71, 91, 443, 497, 637, 923, 3101, 3479, 5759, 6461, 21707, 31453, 40313, 45227, 220171, 282191, 408889, 1541197, 2862223, 20035561]

約数ペア:

[(1, 20035561), (7, 2862223), (13, 1541197), (49, 408889), (71, 282191), (91, 220171), (443, 45227), (497, 40313), (637, 31453), (923, 21707), (3101, 6461), (3479, 5759)]