20518372221

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1\times {\mathrm{83407}}^1$

素因数の和:85360

約数の個数: 16

約数和(自身を含む): 28009073664

約数和(自身を除く): 7490701443

約数列:

[1, 3, 43, 129, 1907, 5721, 82001, 83407, 246003, 250221, 3586501, 10759503, 159057149, 477171447, 6839457407, 20518372221]

約数ペア:

[(1, 20518372221), (3, 6839457407), (43, 477171447), (129, 159057149), (1907, 10759503), (5721, 3586501), (82001, 250221), (83407, 246003)]