19974815

素因数分解:

$5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2897}}^1$

素因数の和:3106

約数の個数: 16

約数和(自身を含む): 27542592

約数和(自身を除く): 7567777

約数列:

[1, 5, 7, 35, 197, 985, 1379, 2897, 6895, 14485, 20279, 101395, 570709, 2853545, 3994963, 19974815]

約数ペア:

[(1, 19974815), (5, 3994963), (7, 2853545), (35, 570709), (197, 101395), (985, 20279), (1379, 14485), (2897, 6895)]