18688604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 37981440

約数和(自身を除く): 19292836

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 59, 92, 118, 236, 253, 313, 506, 626, 649, 1012, 1252, 1298, 1357, 2596, 2714, 3443, 5428, 6886, 7199, 13772, 14398, 14927, 18467, 28796, 29854, 36934, 59708, 73868, 79189, 158378, 203137, 316756, 406274, 424741, 812548, 849482, 1698964, 4672151, 9344302, 18688604]

約数ペア:

[(1, 18688604), (2, 9344302), (4, 4672151), (11, 1698964), (22, 849482), (23, 812548), (44, 424741), (46, 406274), (59, 316756), (92, 203137), (118, 158378), (236, 79189), (253, 73868), (313, 59708), (506, 36934), (626, 29854), (649, 28796), (1012, 18467), (1252, 14927), (1298, 14398), (1357, 13772), (2596, 7199), (2714, 6886), (3443, 5428)]