20923804

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2543}}^1$

素因数の和:2586

約数の個数: 36

約数和(自身を含む): 42632352

約数和(自身を除く): 21708548

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 242, 374, 484, 748, 2057, 2543, 4114, 5086, 8228, 10172, 27973, 43231, 55946, 86462, 111892, 172924, 307703, 475541, 615406, 951082, 1230812, 1902164, 5230951, 10461902, 20923804]

約数ペア:

[(1, 20923804), (2, 10461902), (4, 5230951), (11, 1902164), (17, 1230812), (22, 951082), (34, 615406), (44, 475541), (68, 307703), (121, 172924), (187, 111892), (242, 86462), (374, 55946), (484, 43231), (748, 27973), (2057, 10172), (2543, 8228), (4114, 5086)]