20490862

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 15635858

約数列:

[1, 2, 7, 14, 79, 97, 158, 191, 194, 382, 553, 679, 1106, 1337, 1358, 2674, 7663, 15089, 15326, 18527, 30178, 37054, 53641, 105623, 107282, 129689, 211246, 259378, 1463633, 2927266, 10245431, 20490862]

約数ペア:

[(1, 20490862), (2, 10245431), (7, 2927266), (14, 1463633), (79, 259378), (97, 211246), (158, 129689), (191, 107282), (194, 105623), (382, 53641), (553, 37054), (679, 30178), (1106, 18527), (1337, 15326), (1358, 15089), (2674, 7663)]