21488734

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{13151}}^1$

素因数の和:13215

約数の個数: 16

約数和(自身を含む): 34721280

約数和(自身を除く): 13232546

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 13151, 26302, 249869, 499738, 565493, 1130986, 10744367, 21488734]

約数ペア:

[(1, 21488734), (2, 10744367), (19, 1130986), (38, 565493), (43, 499738), (86, 249869), (817, 26302), (1634, 13151)]