20621018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{491}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 35707392

約数和(自身を除く): 15086374

約数列:

[1, 2, 11, 22, 23, 46, 83, 166, 253, 491, 506, 913, 982, 1826, 1909, 3818, 5401, 10802, 11293, 20999, 22586, 40753, 41998, 81506, 124223, 248446, 448283, 896566, 937319, 1874638, 10310509, 20621018]

約数ペア:

[(1, 20621018), (2, 10310509), (11, 1874638), (22, 937319), (23, 896566), (46, 448283), (83, 248446), (166, 124223), (253, 81506), (491, 41998), (506, 40753), (913, 22586), (982, 20999), (1826, 11293), (1909, 10802), (3818, 5401)]