21127688

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24229}}^1$

素因数の和:24344

約数の個数: 16

約数和(自身を含む): 39979500

約数和(自身を除く): 18851812

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24229, 48458, 96916, 193832, 2640961, 5281922, 10563844, 21127688]

約数ペア:

[(1, 21127688), (2, 10563844), (4, 5281922), (8, 2640961), (109, 193832), (218, 96916), (436, 48458), (872, 24229)]