21233168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{541}}^1$

素因数の和:783

約数の個数: 40

約数和(自身を含む): 45163776

約数和(自身を除く): 23930608

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 223, 446, 541, 892, 1082, 1784, 2164, 2453, 3568, 4328, 4906, 5951, 8656, 9812, 11902, 19624, 23804, 39248, 47608, 95216, 120643, 241286, 482572, 965144, 1327073, 1930288, 2654146, 5308292, 10616584, 21233168]

約数ペア:

[(1, 21233168), (2, 10616584), (4, 5308292), (8, 2654146), (11, 1930288), (16, 1327073), (22, 965144), (44, 482572), (88, 241286), (176, 120643), (223, 95216), (446, 47608), (541, 39248), (892, 23804), (1082, 19624), (1784, 11902), (2164, 9812), (2453, 8656), (3568, 5951), (4328, 4906)]