20652164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20903}}^1$

素因数の和:20939

約数の個数: 24

約数和(自身を含む): 40971840

約数和(自身を除く): 20319676

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20903, 41806, 83612, 271739, 397157, 543478, 794314, 1086956, 1588628, 5163041, 10326082, 20652164]

約数ペア:

[(1, 20652164), (2, 10326082), (4, 5163041), (13, 1588628), (19, 1086956), (26, 794314), (38, 543478), (52, 397157), (76, 271739), (247, 83612), (494, 41806), (988, 20903)]