21420138

素因数分解:

$2^1\times 3^1\times {\mathrm{157}}^1\times {\mathrm{22739}}^1$

素因数の和:22901

約数の個数: 16

約数和(自身を含む): 43115040

約数和(自身を除く): 21694902

約数列:

[1, 2, 3, 6, 157, 314, 471, 942, 22739, 45478, 68217, 136434, 3570023, 7140046, 10710069, 21420138]

約数ペア:

[(1, 21420138), (2, 10710069), (3, 7140046), (6, 3570023), (157, 136434), (314, 68217), (471, 45478), (942, 22739)]