18683912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 40279680

約数和(自身を除く): 21595768

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 73, 92, 104, 107, 146, 184, 214, 292, 299, 428, 584, 598, 856, 949, 1196, 1391, 1679, 1898, 2392, 2461, 2782, 3358, 3796, 4922, 5564, 6716, 7592, 7811, 9844, 11128, 13432, 15622, 19688, 21827, 31244, 31993, 43654, 62488, 63986, 87308, 101543, 127972, 174616, 179653, 203086, 255944, 359306, 406172, 718612, 812344, 1437224, 2335489, 4670978, 9341956, 18683912]

約数ペア:

[(1, 18683912), (2, 9341956), (4, 4670978), (8, 2335489), (13, 1437224), (23, 812344), (26, 718612), (46, 406172), (52, 359306), (73, 255944), (92, 203086), (104, 179653), (107, 174616), (146, 127972), (184, 101543), (214, 87308), (292, 63986), (299, 62488), (428, 43654), (584, 31993), (598, 31244), (856, 21827), (949, 19688), (1196, 15622), (1391, 13432), (1679, 11128), (1898, 9844), (2392, 7811), (2461, 7592), (2782, 6716), (3358, 5564), (3796, 4922)]