21420566

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{787}}^1$

素因数の和:1259

約数の個数: 16

約数和(自身を含む): 33285120

約数和(自身を除く): 11864554

約数列:

[1, 2, 31, 62, 439, 787, 878, 1574, 13609, 24397, 27218, 48794, 345493, 690986, 10710283, 21420566]

約数ペア:

[(1, 21420566), (2, 10710283), (31, 690986), (62, 345493), (439, 48794), (787, 27218), (878, 24397), (1574, 13609)]