21237647541

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{994691}}^1$

素因数の和:995352

約数の個数: 16

約数和(自身を含む): 30938899968

約数和(自身を除く): 9701252427

約数列:

[1, 3, 11, 33, 647, 1941, 7117, 21351, 994691, 2984073, 10941601, 32824803, 643565077, 1930695231, 7079215847, 21237647541]

約数ペア:

[(1, 21237647541), (3, 7079215847), (11, 1930695231), (33, 643565077), (647, 32824803), (1941, 10941601), (7117, 2984073), (21351, 994691)]