20408382

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{5323}}^1$

素因数の和:5405

約数の個数: 32

約数和(自身を含む): 45999360

約数和(自身を除く): 25590978

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 5323, 10646, 15969, 31938, 47907, 95814, 143721, 287442, 377933, 755866, 1133799, 2267598, 3401397, 6802794, 10204191, 20408382]

約数ペア:

[(1, 20408382), (2, 10204191), (3, 6802794), (6, 3401397), (9, 2267598), (18, 1133799), (27, 755866), (54, 377933), (71, 287442), (142, 143721), (213, 95814), (426, 47907), (639, 31938), (1278, 15969), (1917, 10646), (3834, 5323)]