21891608065

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{3457}}^1\times {\mathrm{26947}}^1$

素因数の和:30456

約数の個数: 16

約数和(自身を含む): 26837620992

約数和(自身を除く): 4946012927

約数列:

[1, 5, 47, 235, 3457, 17285, 26947, 134735, 162479, 812395, 1266509, 6332545, 93155779, 465778895, 4378321613, 21891608065]

約数ペア:

[(1, 21891608065), (5, 4378321613), (47, 465778895), (235, 93155779), (3457, 6332545), (17285, 1266509), (26947, 812395), (134735, 162479)]