208774153

素因数分解:

$7^4\times {\mathrm{89}}^1\times {\mathrm{977}}^1$

素因数の和:1094

約数の個数: 20

約数和(自身を含む): 246544020

約数和(自身を除く): 37769867

約数列:

[1, 7, 49, 89, 343, 623, 977, 2401, 4361, 6839, 30527, 47873, 86953, 213689, 335111, 608671, 2345777, 4260697, 29824879, 208774153]

約数ペア:

[(1, 208774153), (7, 29824879), (49, 4260697), (89, 2345777), (343, 608671), (623, 335111), (977, 213689), (2401, 86953), (4361, 47873), (6839, 30527)]