21421736

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6271}}^1$

素因数の和:6345

約数の個数: 32

約数和(自身を含む): 46663680

約数和(自身を除く): 25241944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6271, 12542, 25084, 43897, 50168, 87794, 175588, 351176, 382531, 765062, 1530124, 2677717, 3060248, 5355434, 10710868, 21421736]

約数ペア:

[(1, 21421736), (2, 10710868), (4, 5355434), (7, 3060248), (8, 2677717), (14, 1530124), (28, 765062), (56, 382531), (61, 351176), (122, 175588), (244, 87794), (427, 50168), (488, 43897), (854, 25084), (1708, 12542), (3416, 6271)]