21213584

素因数分解:

$2^4\times 7^1\times {\mathrm{189407}}^1$

素因数の和:189422

約数の個数: 20

約数和(自身を含む): 46973184

約数和(自身を除く): 25759600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189407, 378814, 757628, 1325849, 1515256, 2651698, 3030512, 5303396, 10606792, 21213584]

約数ペア:

[(1, 21213584), (2, 10606792), (4, 5303396), (7, 3030512), (8, 2651698), (14, 1515256), (16, 1325849), (28, 757628), (56, 378814), (112, 189407)]