19980471

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6301}}^1$

素因数の和:6462

約数の個数: 16

約数和(自身を含む): 30652928

約数和(自身を除く): 10672457

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6301, 18903, 44107, 132321, 951451, 2854353, 6660157, 19980471]

約数ペア:

[(1, 19980471), (3, 6660157), (7, 2854353), (21, 951451), (151, 132321), (453, 44107), (1057, 18903), (3171, 6301)]