21077613

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{2437}}^1$

素因数の和:2505

約数の個数: 18

約数和(自身を含む): 31472142

約数和(自身を除く): 10394529

約数列:

[1, 3, 9, 31, 93, 279, 961, 2437, 2883, 7311, 8649, 21933, 75547, 226641, 679923, 2341957, 7025871, 21077613]

約数ペア:

[(1, 21077613), (3, 7025871), (9, 2341957), (31, 679923), (93, 226641), (279, 75547), (961, 21933), (2437, 8649), (2883, 7311)]