21247386

素因数分解:

$2^1\times 3^1\times {\mathrm{401}}^1\times {\mathrm{8831}}^1$

素因数の和:9237

約数の個数: 16

約数和(自身を含む): 42605568

約数和(自身を除く): 21358182

約数列:

[1, 2, 3, 6, 401, 802, 1203, 2406, 8831, 17662, 26493, 52986, 3541231, 7082462, 10623693, 21247386]

約数ペア:

[(1, 21247386), (2, 10623693), (3, 7082462), (6, 3541231), (401, 52986), (802, 26493), (1203, 17662), (2406, 8831)]