21230712

素因数分解:

$2^3\times 3^2\times {\mathrm{149}}^1\times {\mathrm{1979}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 57915000

約数和(自身を除く): 36684288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 149, 298, 447, 596, 894, 1192, 1341, 1788, 1979, 2682, 3576, 3958, 5364, 5937, 7916, 10728, 11874, 15832, 17811, 23748, 35622, 47496, 71244, 142488, 294871, 589742, 884613, 1179484, 1769226, 2358968, 2653839, 3538452, 5307678, 7076904, 10615356, 21230712]

約数ペア:

[(1, 21230712), (2, 10615356), (3, 7076904), (4, 5307678), (6, 3538452), (8, 2653839), (9, 2358968), (12, 1769226), (18, 1179484), (24, 884613), (36, 589742), (72, 294871), (149, 142488), (298, 71244), (447, 47496), (596, 35622), (894, 23748), (1192, 17811), (1341, 15832), (1788, 11874), (1979, 10728), (2682, 7916), (3576, 5937), (3958, 5364)]