19561119

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1\times {\mathrm{317}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 26640768

約数和(自身を除く): 7079649

約数列:

[1, 3, 67, 201, 307, 317, 921, 951, 20569, 21239, 61707, 63717, 97319, 291957, 6520373, 19561119]

約数ペア:

[(1, 19561119), (3, 6520373), (67, 291957), (201, 97319), (307, 63717), (317, 61707), (921, 21239), (951, 20569)]