20836641

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6571}}^1$

素因数の和:6732

約数の個数: 16

約数和(自身を含む): 31966208

約数和(自身を除く): 11129567

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6571, 19713, 45997, 137991, 992221, 2976663, 6945547, 20836641]

約数ペア:

[(1, 20836641), (3, 6945547), (7, 2976663), (21, 992221), (151, 137991), (453, 45997), (1057, 19713), (3171, 6571)]