21692643

素因数分解:

$3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{853}}^1$

素因数の和:1043

約数の個数: 24

約数和(自身を含む): 33879888

約数和(自身を除く): 12187245

約数列:

[1, 3, 7, 21, 49, 147, 173, 519, 853, 1211, 2559, 3633, 5971, 8477, 17913, 25431, 41797, 125391, 147569, 442707, 1032983, 3098949, 7230881, 21692643]

約数ペア:

[(1, 21692643), (3, 7230881), (7, 3098949), (21, 1032983), (49, 442707), (147, 147569), (173, 125391), (519, 41797), (853, 25431), (1211, 17913), (2559, 8477), (3633, 5971)]