21701095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 8780825

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 479, 533, 697, 1105, 2395, 2665, 3485, 6227, 8143, 9061, 19639, 31135, 40715, 45305, 98195, 105859, 255307, 333863, 529295, 1276535, 1669315, 4340219, 21701095]

約数ペア:

[(1, 21701095), (5, 4340219), (13, 1669315), (17, 1276535), (41, 529295), (65, 333863), (85, 255307), (205, 105859), (221, 98195), (479, 45305), (533, 40715), (697, 31135), (1105, 19639), (2395, 9061), (2665, 8143), (3485, 6227)]