21981242

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1\times {\mathrm{617}}^1$

素因数の和:1045

約数の個数: 16

約数和(自身を含む): 33816960

約数和(自身を除く): 11835718

約数列:

[1, 2, 47, 94, 379, 617, 758, 1234, 17813, 28999, 35626, 57998, 233843, 467686, 10990621, 21981242]

約数ペア:

[(1, 21981242), (2, 10990621), (47, 467686), (94, 233843), (379, 57998), (617, 35626), (758, 28999), (1234, 17813)]