19001356

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 37876608

約数和(自身を除く): 18875252

約数列:

[1, 2, 4, 11, 22, 43, 44, 83, 86, 121, 166, 172, 242, 332, 473, 484, 913, 946, 1331, 1826, 1892, 2662, 3569, 3652, 5203, 5324, 7138, 10043, 10406, 14276, 20086, 20812, 39259, 40172, 57233, 78518, 110473, 114466, 157036, 220946, 228932, 431849, 441892, 863698, 1727396, 4750339, 9500678, 19001356]

約数ペア:

[(1, 19001356), (2, 9500678), (4, 4750339), (11, 1727396), (22, 863698), (43, 441892), (44, 431849), (83, 228932), (86, 220946), (121, 157036), (166, 114466), (172, 110473), (242, 78518), (332, 57233), (473, 40172), (484, 39259), (913, 20812), (946, 20086), (1331, 14276), (1826, 10406), (1892, 10043), (2662, 7138), (3569, 5324), (3652, 5203)]