20871036235

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1396523}}^1$

素因数の和:1396603

約数の個数: 24

約数和(自身を含む): 29611894896

約数和(自身を除く): 8740858661

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 14945, 1396523, 6982615, 9775661, 48878305, 68429627, 85187903, 342148135, 425939515, 596315321, 2981576605, 4174207247, 20871036235]

約数ペア:

[(1, 20871036235), (5, 4174207247), (7, 2981576605), (35, 596315321), (49, 425939515), (61, 342148135), (245, 85187903), (305, 68429627), (427, 48878305), (2135, 9775661), (2989, 6982615), (14945, 1396523)]