21961112

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144481}}^1$

素因数の和:144506

約数の個数: 16

約数和(自身を含む): 43344600

約数和(自身を除く): 21383488

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144481, 288962, 577924, 1155848, 2745139, 5490278, 10980556, 21961112]

約数ペア:

[(1, 21961112), (2, 10980556), (4, 5490278), (8, 2745139), (19, 1155848), (38, 577924), (76, 288962), (152, 144481)]