21800168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2161}}^1$

素因数の和:2277

約数の個数: 32

約数和(自身を含む): 44493960

約数和(自身を除く): 22693792

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 194, 388, 776, 1261, 2161, 2522, 4322, 5044, 8644, 10088, 17288, 28093, 56186, 112372, 209617, 224744, 419234, 838468, 1676936, 2725021, 5450042, 10900084, 21800168]

約数ペア:

[(1, 21800168), (2, 10900084), (4, 5450042), (8, 2725021), (13, 1676936), (26, 838468), (52, 419234), (97, 224744), (104, 209617), (194, 112372), (388, 56186), (776, 28093), (1261, 17288), (2161, 10088), (2522, 8644), (4322, 5044)]