21177669

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 28728000

約数和(自身を除く): 7550331

約数列:

[1, 3, 113, 179, 339, 349, 537, 1047, 20227, 39437, 60681, 62471, 118311, 187413, 7059223, 21177669]

約数ペア:

[(1, 21177669), (3, 7059223), (113, 187413), (179, 118311), (339, 62471), (349, 60681), (537, 39437), (1047, 20227)]