21405847029

素因数分解:

$3^1\times 7^2\times {\mathrm{1451}}^1\times {\mathrm{100357}}^1$

素因数の和:101825

約数の個数: 24

約数和(自身を含む): 33224118048

約数和(自身を除く): 11818271019

約数列:

[1, 3, 7, 21, 49, 147, 1451, 4353, 10157, 30471, 71099, 100357, 213297, 301071, 702499, 2107497, 4917493, 14752479, 145618007, 436854021, 1019326049, 3057978147, 7135282343, 21405847029]

約数ペア:

[(1, 21405847029), (3, 7135282343), (7, 3057978147), (21, 1019326049), (49, 436854021), (147, 145618007), (1451, 14752479), (4353, 4917493), (10157, 2107497), (30471, 702499), (71099, 301071), (100357, 213297)]