21283048

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156493}}^1$

素因数の和:156516

約数の個数: 16

約数和(自身を含む): 42253380

約数和(自身を除く): 20970332

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156493, 312986, 625972, 1251944, 2660381, 5320762, 10641524, 21283048]

約数ペア:

[(1, 21283048), (2, 10641524), (4, 5320762), (8, 2660381), (17, 1251944), (34, 625972), (68, 312986), (136, 156493)]