20472942

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 47938176

約数和(自身を除く): 27465234

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 131, 183, 262, 366, 393, 427, 786, 854, 917, 1281, 1834, 2562, 2751, 3721, 5502, 7442, 7991, 11163, 15982, 22326, 23973, 26047, 47946, 52094, 55937, 78141, 111874, 156282, 167811, 335622, 487451, 974902, 1462353, 2924706, 3412157, 6824314, 10236471, 20472942]

約数ペア:

[(1, 20472942), (2, 10236471), (3, 6824314), (6, 3412157), (7, 2924706), (14, 1462353), (21, 974902), (42, 487451), (61, 335622), (122, 167811), (131, 156282), (183, 111874), (262, 78141), (366, 55937), (393, 52094), (427, 47946), (786, 26047), (854, 23973), (917, 22326), (1281, 15982), (1834, 11163), (2562, 7991), (2751, 7442), (3721, 5502)]