18676976

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:521

約数の個数: 40

約数和(自身を含む): 37685088

約数和(自身を除く): 19008112

約数列:

[1, 2, 4, 8, 16, 41, 71, 82, 142, 164, 284, 328, 401, 568, 656, 802, 1136, 1604, 2911, 3208, 5822, 6416, 11644, 16441, 23288, 28471, 32882, 46576, 56942, 65764, 113884, 131528, 227768, 263056, 455536, 1167311, 2334622, 4669244, 9338488, 18676976]

約数ペア:

[(1, 18676976), (2, 9338488), (4, 4669244), (8, 2334622), (16, 1167311), (41, 455536), (71, 263056), (82, 227768), (142, 131528), (164, 113884), (284, 65764), (328, 56942), (401, 46576), (568, 32882), (656, 28471), (802, 23288), (1136, 16441), (1604, 11644), (2911, 6416), (3208, 5822)]