21089866

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 37749888

約数和(自身を除く): 16660022

約数列:

[1, 2, 7, 14, 43, 53, 86, 106, 301, 371, 602, 661, 742, 1322, 2279, 4558, 4627, 9254, 15953, 28423, 31906, 35033, 56846, 70066, 198961, 245231, 397922, 490462, 1506419, 3012838, 10544933, 21089866]

約数ペア:

[(1, 21089866), (2, 10544933), (7, 3012838), (14, 1506419), (43, 490462), (53, 397922), (86, 245231), (106, 198961), (301, 70066), (371, 56846), (602, 35033), (661, 31906), (742, 28423), (1322, 15953), (2279, 9254), (4558, 4627)]