20972642

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{4261}}^1$

素因数の和:4393

約数の個数: 16

約数和(自身を含む): 33141312

約数和(自身を除く): 12168670

約数列:

[1, 2, 23, 46, 107, 214, 2461, 4261, 4922, 8522, 98003, 196006, 455927, 911854, 10486321, 20972642]

約数ペア:

[(1, 20972642), (2, 10486321), (23, 911854), (46, 455927), (107, 196006), (214, 98003), (2461, 8522), (4261, 4922)]