21291810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7027}}^1$

素因数の和:7138

約数の個数: 32

約数和(自身を含む): 51613632

約数和(自身を除く): 30321822

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 101, 202, 303, 505, 606, 1010, 1515, 3030, 7027, 14054, 21081, 35135, 42162, 70270, 105405, 210810, 709727, 1419454, 2129181, 3548635, 4258362, 7097270, 10645905, 21291810]

約数ペア:

[(1, 21291810), (2, 10645905), (3, 7097270), (5, 4258362), (6, 3548635), (10, 2129181), (15, 1419454), (30, 709727), (101, 210810), (202, 105405), (303, 70270), (505, 42162), (606, 35135), (1010, 21081), (1515, 14054), (3030, 7027)]