20680658

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2\times {\mathrm{151}}^1$

素因数の和:278

約数の個数: 24

約数和(自身を含む): 32934144

約数和(自身を除く): 12253486

約数列:

[1, 2, 31, 47, 62, 94, 151, 302, 1457, 2209, 2914, 4418, 4681, 7097, 9362, 14194, 68479, 136958, 220007, 333559, 440014, 667118, 10340329, 20680658]

約数ペア:

[(1, 20680658), (2, 10340329), (31, 667118), (47, 440014), (62, 333559), (94, 220007), (151, 136958), (302, 68479), (1457, 14194), (2209, 9362), (2914, 7097), (4418, 4681)]