20109518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{70313}}^1$

素因数の和:70339

約数の個数: 16

約数和(自身を含む): 35438256

約数和(自身を除く): 15328738

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 70313, 140626, 773443, 914069, 1546886, 1828138, 10054759, 20109518]

約数ペア:

[(1, 20109518), (2, 10054759), (11, 1828138), (13, 1546886), (22, 914069), (26, 773443), (143, 140626), (286, 70313)]