21909104

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{983}}^1$

素因数の和:1197

約数の個数: 40

約数和(自身を含む): 48806400

約数和(自身を除く): 26897296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 983, 1393, 1592, 1966, 2786, 3184, 3932, 5572, 6881, 7864, 11144, 13762, 15728, 22288, 27524, 55048, 110096, 195617, 391234, 782468, 1369319, 1564936, 2738638, 3129872, 5477276, 10954552, 21909104]

約数ペア:

[(1, 21909104), (2, 10954552), (4, 5477276), (7, 3129872), (8, 2738638), (14, 1564936), (16, 1369319), (28, 782468), (56, 391234), (112, 195617), (199, 110096), (398, 55048), (796, 27524), (983, 22288), (1393, 15728), (1592, 13762), (1966, 11144), (2786, 7864), (3184, 6881), (3932, 5572)]