18940971

素因数分解:

$3^1\times 7^1\times {\mathrm{751}}^1\times {\mathrm{1201}}^1$

素因数の和:1962

約数の個数: 16

約数和(自身を含む): 28924928

約数和(自身を除く): 9983957

約数列:

[1, 3, 7, 21, 751, 1201, 2253, 3603, 5257, 8407, 15771, 25221, 901951, 2705853, 6313657, 18940971]

約数ペア:

[(1, 18940971), (3, 6313657), (7, 2705853), (21, 901951), (751, 25221), (1201, 15771), (2253, 8407), (3603, 5257)]