20949695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18959}}^1$

素因数の和:18994

約数の個数: 16

約数和(自身を含む): 28667520

約数和(自身を除く): 7717825

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18959, 94795, 246467, 322303, 1232335, 1611515, 4189939, 20949695]

約数ペア:

[(1, 20949695), (5, 4189939), (13, 1611515), (17, 1232335), (65, 322303), (85, 246467), (221, 94795), (1105, 18959)]