20385717

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 30260160

約数和(自身を除く): 9874443

約数列:

[1, 3, 11, 33, 89, 121, 267, 363, 631, 979, 1893, 2937, 6941, 10769, 20823, 32307, 56159, 76351, 168477, 229053, 617749, 1853247, 6795239, 20385717]

約数ペア:

[(1, 20385717), (3, 6795239), (11, 1853247), (33, 617749), (89, 229053), (121, 168477), (267, 76351), (363, 56159), (631, 32307), (979, 20823), (1893, 10769), (2937, 6941)]