21642992

素因数分解:

$2^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1117}}^1$

素因数の和:1305

約数の個数: 40

約数和(自身を含む): 48243936

約数和(自身を除く): 26600944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173, 346, 692, 1117, 1211, 1384, 2234, 2422, 2768, 4468, 4844, 7819, 8936, 9688, 15638, 17872, 19376, 31276, 62552, 125104, 193241, 386482, 772964, 1352687, 1545928, 2705374, 3091856, 5410748, 10821496, 21642992]

約数ペア:

[(1, 21642992), (2, 10821496), (4, 5410748), (7, 3091856), (8, 2705374), (14, 1545928), (16, 1352687), (28, 772964), (56, 386482), (112, 193241), (173, 125104), (346, 62552), (692, 31276), (1117, 19376), (1211, 17872), (1384, 15638), (2234, 9688), (2422, 8936), (2768, 7819), (4468, 4844)]