18781282

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 31534272

約数和(自身を除く): 12752990

約数列:

[1, 2, 13, 26, 43, 86, 107, 157, 214, 314, 559, 1118, 1391, 2041, 2782, 4082, 4601, 6751, 9202, 13502, 16799, 33598, 59813, 87763, 119626, 175526, 218387, 436774, 722357, 1444714, 9390641, 18781282]

約数ペア:

[(1, 18781282), (2, 9390641), (13, 1444714), (26, 722357), (43, 436774), (86, 218387), (107, 175526), (157, 119626), (214, 87763), (314, 59813), (559, 33598), (1118, 16799), (1391, 13502), (2041, 9202), (2782, 6751), (4082, 4601)]