18211016

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 35259840

約数和(自身を除く): 17048824

約数列:

[1, 2, 4, 8, 43, 86, 167, 172, 317, 334, 344, 634, 668, 1268, 1336, 2536, 7181, 13631, 14362, 27262, 28724, 52939, 54524, 57448, 105878, 109048, 211756, 423512, 2276377, 4552754, 9105508, 18211016]

約数ペア:

[(1, 18211016), (2, 9105508), (4, 4552754), (8, 2276377), (43, 423512), (86, 211756), (167, 109048), (172, 105878), (317, 57448), (334, 54524), (344, 52939), (634, 28724), (668, 27262), (1268, 14362), (1336, 13631), (2536, 7181)]