21137112013

素因数分解:

${\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{157433}}^1$

素因数の和:157596

約数の個数: 16

約数和(自身を含む): 22489132032

約数和(自身を除く): 1352020019

約数列:

[1, 31, 61, 71, 1891, 2201, 4331, 134261, 157433, 4880423, 9603413, 11177743, 297705803, 346510033, 681842323, 21137112013]

約数ペア:

[(1, 21137112013), (31, 681842323), (61, 346510033), (71, 297705803), (1891, 11177743), (2201, 9603413), (4331, 4880423), (134261, 157433)]