17991801

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1471}}^1$

素因数の和:1634

約数の個数: 20

約数和(自身を含む): 27073024

約数和(自身を除く): 9081223

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 1471, 4077, 4413, 12231, 13239, 39717, 119151, 222121, 666363, 1999089, 5997267, 17991801]

約数ペア:

[(1, 17991801), (3, 5997267), (9, 1999089), (27, 666363), (81, 222121), (151, 119151), (453, 39717), (1359, 13239), (1471, 12231), (4077, 4413)]