21260272

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1069}}^1$

素因数の和:1201

約数の個数: 40

約数和(自身を含む): 45376560

約数和(自身を除く): 24116288

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 904, 1069, 1243, 1808, 2138, 2486, 4276, 4972, 8552, 9944, 11759, 17104, 19888, 23518, 47036, 94072, 120797, 188144, 241594, 483188, 966376, 1328767, 1932752, 2657534, 5315068, 10630136, 21260272]

約数ペア:

[(1, 21260272), (2, 10630136), (4, 5315068), (8, 2657534), (11, 1932752), (16, 1328767), (22, 966376), (44, 483188), (88, 241594), (113, 188144), (176, 120797), (226, 94072), (452, 47036), (904, 23518), (1069, 19888), (1243, 17104), (1808, 11759), (2138, 9944), (2486, 8552), (4276, 4972)]