21318352

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2053}}^1$

素因数の和:2131

約数の個数: 40

約数和(自身を含む): 45845280

約数和(自身を除く): 24526928

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 59, 88, 118, 176, 236, 472, 649, 944, 1298, 2053, 2596, 4106, 5192, 8212, 10384, 16424, 22583, 32848, 45166, 90332, 121127, 180664, 242254, 361328, 484508, 969016, 1332397, 1938032, 2664794, 5329588, 10659176, 21318352]

約数ペア:

[(1, 21318352), (2, 10659176), (4, 5329588), (8, 2664794), (11, 1938032), (16, 1332397), (22, 969016), (44, 484508), (59, 361328), (88, 242254), (118, 180664), (176, 121127), (236, 90332), (472, 45166), (649, 32848), (944, 22583), (1298, 16424), (2053, 10384), (2596, 8212), (4106, 5192)]