21137818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{1409}}^1$

素因数の和:2001

約数の個数: 16

約数和(自身を含む): 34229160

約数和(自身を除く): 13091342

約数列:

[1, 2, 13, 26, 577, 1154, 1409, 2818, 7501, 15002, 18317, 36634, 812993, 1625986, 10568909, 21137818]

約数ペア:

[(1, 21137818), (2, 10568909), (13, 1625986), (26, 812993), (577, 36634), (1154, 18317), (1409, 15002), (2818, 7501)]