21053989055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{1471}}^1\times {\mathrm{260231}}^1$

素因数の和:261718

約数の個数: 16

約数和(自身を含む): 27580428288

約数和(自身を除く): 6526439233

約数列:

[1, 5, 11, 55, 1471, 7355, 16181, 80905, 260231, 1301155, 2862541, 14312705, 382799801, 1913999005, 4210797811, 21053989055]

約数ペア:

[(1, 21053989055), (5, 4210797811), (11, 1913999005), (55, 382799801), (1471, 14312705), (7355, 2862541), (16181, 1301155), (80905, 260231)]