20982194

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12841}}^1$

素因数の和:12905

約数の個数: 16

約数和(自身を含む): 33902880

約数和(自身を除く): 12920686

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12841, 25682, 243979, 487958, 552163, 1104326, 10491097, 20982194]

約数ペア:

[(1, 20982194), (2, 10491097), (19, 1104326), (38, 552163), (43, 487958), (86, 243979), (817, 25682), (1634, 12841)]