21107248

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12329}}^1$

素因数の和:12444

約数の個数: 20

約数和(自身を含む): 41280840

約数和(自身を除く): 20173592

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12329, 24658, 49316, 98632, 197264, 1319203, 2638406, 5276812, 10553624, 21107248]

約数ペア:

[(1, 21107248), (2, 10553624), (4, 5276812), (8, 2638406), (16, 1319203), (107, 197264), (214, 98632), (428, 49316), (856, 24658), (1712, 12329)]