28013335

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{13121}}^1$

素因数の和:13194

約数の個数: 16

約数和(自身を含む): 39051072

約数和(自身を除く): 11037737

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 13121, 65605, 91847, 459235, 800381, 4001905, 5602667, 28013335]

約数ペア:

[(1, 28013335), (5, 5602667), (7, 4001905), (35, 800381), (61, 459235), (305, 91847), (427, 65605), (2135, 13121)]