21036488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{863}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 43234560

約数和(自身を除く): 22198072

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 277, 554, 863, 1108, 1726, 2216, 3047, 3452, 6094, 6904, 9493, 12188, 18986, 24376, 37972, 75944, 239051, 478102, 956204, 1912408, 2629561, 5259122, 10518244, 21036488]

約数ペア:

[(1, 21036488), (2, 10518244), (4, 5259122), (8, 2629561), (11, 1912408), (22, 956204), (44, 478102), (88, 239051), (277, 75944), (554, 37972), (863, 24376), (1108, 18986), (1726, 12188), (2216, 9493), (3047, 6904), (3452, 6094)]