21415898

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66509}}^1$

素因数の和:66541

約数の個数: 16

約数和(自身を含む): 38309760

約数和(自身を除く): 16893862

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66509, 133018, 465563, 931126, 1529707, 3059414, 10707949, 21415898]

約数ペア:

[(1, 21415898), (2, 10707949), (7, 3059414), (14, 1529707), (23, 931126), (46, 465563), (161, 133018), (322, 66509)]