21389802

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509281}}^1$

素因数の和:509293

約数の個数: 16

約数和(自身を含む): 48891072

約数和(自身を除く): 27501270

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509281, 1018562, 1527843, 3055686, 3564967, 7129934, 10694901, 21389802]

約数ペア:

[(1, 21389802), (2, 10694901), (3, 7129934), (6, 3564967), (7, 3055686), (14, 1527843), (21, 1018562), (42, 509281)]