18986608

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:433

約数の個数: 40

約数和(自身を含む): 38185056

約数和(自身を除く): 19198448

約数列:

[1, 2, 4, 8, 16, 41, 82, 103, 164, 206, 281, 328, 412, 562, 656, 824, 1124, 1648, 2248, 4223, 4496, 8446, 11521, 16892, 23042, 28943, 33784, 46084, 57886, 67568, 92168, 115772, 184336, 231544, 463088, 1186663, 2373326, 4746652, 9493304, 18986608]

約数ペア:

[(1, 18986608), (2, 9493304), (4, 4746652), (8, 2373326), (16, 1186663), (41, 463088), (82, 231544), (103, 184336), (164, 115772), (206, 92168), (281, 67568), (328, 57886), (412, 46084), (562, 33784), (656, 28943), (824, 23042), (1124, 16892), (1648, 11521), (2248, 8446), (4223, 4496)]