21211726

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1$

素因数の和:803

約数の個数: 16

約数和(自身を含む): 32367600

約数和(自身を除く): 11155874

約数列:

[1, 2, 89, 178, 269, 443, 538, 886, 23941, 39427, 47882, 78854, 119167, 238334, 10605863, 21211726]

約数ペア:

[(1, 21211726), (2, 10605863), (89, 238334), (178, 119167), (269, 78854), (443, 47882), (538, 39427), (886, 23941)]