20402554

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{4021}}^1$

素因数の和:4125

約数の個数: 16

約数和(自身を含む): 31854240

約数和(自身を除く): 11451686

約数列:

[1, 2, 43, 59, 86, 118, 2537, 4021, 5074, 8042, 172903, 237239, 345806, 474478, 10201277, 20402554]

約数ペア:

[(1, 20402554), (2, 10201277), (43, 474478), (59, 345806), (86, 237239), (118, 172903), (2537, 8042), (4021, 5074)]