19865951

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{757}}^1$

素因数の和:950

約数の個数: 16

約数和(自身を含む): 23867904

約数和(自身を除く): 4001953

約数列:

[1, 7, 23, 161, 163, 757, 1141, 3749, 5299, 17411, 26243, 121877, 123391, 863737, 2837993, 19865951]

約数ペア:

[(1, 19865951), (7, 2837993), (23, 863737), (161, 123391), (163, 121877), (757, 26243), (1141, 17411), (3749, 5299)]