19978046

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{2371}}^1$

素因数の和:2767

約数の個数: 16

約数和(自身を含む): 32790528

約数和(自身を除く): 12812482

約数列:

[1, 2, 11, 22, 383, 766, 2371, 4213, 4742, 8426, 26081, 52162, 908093, 1816186, 9989023, 19978046]

約数ペア:

[(1, 19978046), (2, 9989023), (11, 1816186), (22, 908093), (383, 52162), (766, 26081), (2371, 8426), (4213, 4742)]