19851208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 43021440

約数和(自身を除く): 23170232

約数列:

[1, 2, 4, 8, 13, 23, 26, 43, 46, 52, 86, 92, 104, 172, 184, 193, 299, 344, 386, 559, 598, 772, 989, 1118, 1196, 1544, 1978, 2236, 2392, 2509, 3956, 4439, 4472, 5018, 7912, 8299, 8878, 10036, 12857, 16598, 17756, 20072, 25714, 33196, 35512, 51428, 57707, 66392, 102856, 107887, 115414, 190877, 215774, 230828, 381754, 431548, 461656, 763508, 863096, 1527016, 2481401, 4962802, 9925604, 19851208]

約数ペア:

[(1, 19851208), (2, 9925604), (4, 4962802), (8, 2481401), (13, 1527016), (23, 863096), (26, 763508), (43, 461656), (46, 431548), (52, 381754), (86, 230828), (92, 215774), (104, 190877), (172, 115414), (184, 107887), (193, 102856), (299, 66392), (344, 57707), (386, 51428), (559, 35512), (598, 33196), (772, 25714), (989, 20072), (1118, 17756), (1196, 16598), (1544, 12857), (1978, 10036), (2236, 8878), (2392, 8299), (2509, 7912), (3956, 5018), (4439, 4472)]