18128656

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12451}}^1$

素因数の和:12479

約数の個数: 40

約数和(自身を含む): 43233344

約数和(自身を除く): 25104688

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12451, 24902, 49804, 87157, 99608, 161863, 174314, 199216, 323726, 348628, 647452, 697256, 1133041, 1294904, 1394512, 2266082, 2589808, 4532164, 9064328, 18128656]

約数ペア:

[(1, 18128656), (2, 9064328), (4, 4532164), (7, 2589808), (8, 2266082), (13, 1394512), (14, 1294904), (16, 1133041), (26, 697256), (28, 647452), (52, 348628), (56, 323726), (91, 199216), (104, 174314), (112, 161863), (182, 99608), (208, 87157), (364, 49804), (728, 24902), (1456, 12451)]