21027818

素因数分解:

$2^1\times 7^1\times {\mathrm{1193}}^1\times {\mathrm{1259}}^1$

素因数の和:2461

約数の個数: 16

約数和(自身を含む): 36106560

約数和(自身を除く): 15078742

約数列:

[1, 2, 7, 14, 1193, 1259, 2386, 2518, 8351, 8813, 16702, 17626, 1501987, 3003974, 10513909, 21027818]

約数ペア:

[(1, 21027818), (2, 10513909), (7, 3003974), (14, 1501987), (1193, 17626), (1259, 16702), (2386, 8813), (2518, 8351)]