21247384

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{56509}}^1$

素因数の和:56562

約数の個数: 16

約数和(自身を含む): 40687200

約数和(自身を除く): 19439816

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 56509, 113018, 226036, 452072, 2655923, 5311846, 10623692, 21247384]

約数ペア:

[(1, 21247384), (2, 10623692), (4, 5311846), (8, 2655923), (47, 452072), (94, 226036), (188, 113018), (376, 56509)]