20687601

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 31426560

約数和(自身を除く): 10738959

約数列:

[1, 3, 11, 33, 43, 61, 129, 183, 239, 473, 671, 717, 1419, 2013, 2623, 2629, 7869, 7887, 10277, 14579, 28853, 30831, 43737, 86559, 113047, 160369, 339141, 481107, 626897, 1880691, 6895867, 20687601]

約数ペア:

[(1, 20687601), (3, 6895867), (11, 1880691), (33, 626897), (43, 481107), (61, 339141), (129, 160369), (183, 113047), (239, 86559), (473, 43737), (671, 30831), (717, 28853), (1419, 14579), (2013, 10277), (2623, 7887), (2629, 7869)]