18171824

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{463}}^1$

素因数の和:705

約数の個数: 40

約数和(自身を含む): 38664192

約数和(自身を除く): 20492368

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 223, 446, 463, 892, 926, 1784, 1852, 2453, 3568, 3704, 4906, 5093, 7408, 9812, 10186, 19624, 20372, 39248, 40744, 81488, 103249, 206498, 412996, 825992, 1135739, 1651984, 2271478, 4542956, 9085912, 18171824]

約数ペア:

[(1, 18171824), (2, 9085912), (4, 4542956), (8, 2271478), (11, 1651984), (16, 1135739), (22, 825992), (44, 412996), (88, 206498), (176, 103249), (223, 81488), (446, 40744), (463, 39248), (892, 20372), (926, 19624), (1784, 10186), (1852, 9812), (2453, 7408), (3568, 5093), (3704, 4906)]