21285111

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{2473}}^1$

素因数の和:2646

約数の個数: 16

約数和(自身を含む): 30083840

約数和(自身を除く): 8798729

約数列:

[1, 3, 19, 57, 151, 453, 2473, 2869, 7419, 8607, 46987, 140961, 373423, 1120269, 7095037, 21285111]

約数ペア:

[(1, 21285111), (3, 7095037), (19, 1120269), (57, 373423), (151, 140961), (453, 46987), (2473, 8607), (2869, 7419)]