21000304810

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20792381}}^1$

素因数の和:20792489

約数の個数: 16

約数和(自身を含む): 38174813352

約数和(自身を除く): 17174508542

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20792381, 41584762, 103961905, 207923810, 2100030481, 4200060962, 10500152405, 21000304810]

約数ペア:

[(1, 21000304810), (2, 10500152405), (5, 4200060962), (10, 2100030481), (101, 207923810), (202, 103961905), (505, 41584762), (1010, 20792381)]