20475637

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1009}}^1$

素因数の和:1252

約数の個数: 16

約数和(自身を含む): 25338880

約数和(自身を除く): 4863243

約数列:

[1, 7, 13, 91, 223, 1009, 1561, 2899, 7063, 13117, 20293, 91819, 225007, 1575049, 2925091, 20475637]

約数ペア:

[(1, 20475637), (7, 2925091), (13, 1575049), (91, 225007), (223, 91819), (1009, 20293), (1561, 13117), (2899, 7063)]