213881305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{26099}}^1$

素因数の和:26264

約数の個数: 16

約数和(自身を含む): 281880000

約数和(自身を除く): 67998695

約数列:

[1, 5, 11, 55, 149, 745, 1639, 8195, 26099, 130495, 287089, 1435445, 3888751, 19443755, 42776261, 213881305]

約数ペア:

[(1, 213881305), (5, 42776261), (11, 19443755), (55, 3888751), (149, 1435445), (745, 287089), (1639, 130495), (8195, 26099)]