21275272

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{29881}}^1$

素因数の和:29976

約数の個数: 16

約数和(自身を含む): 40340700

約数和(自身を除く): 19065428

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 29881, 59762, 119524, 239048, 2659409, 5318818, 10637636, 21275272]

約数ペア:

[(1, 21275272), (2, 10637636), (4, 5318818), (8, 2659409), (89, 239048), (178, 119524), (356, 59762), (712, 29881)]