209364813

素因数分解:

$3^2\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{1931}}^1$

素因数の和:3665

約数の個数: 24

約数和(自身を含む): 345998016

約数和(自身を除く): 136633203

約数列:

[1, 3, 7, 9, 21, 63, 1721, 1931, 5163, 5793, 12047, 13517, 15489, 17379, 36141, 40551, 108423, 121653, 3323251, 9969753, 23262757, 29909259, 69788271, 209364813]

約数ペア:

[(1, 209364813), (3, 69788271), (7, 29909259), (9, 23262757), (21, 9969753), (63, 3323251), (1721, 121653), (1931, 108423), (5163, 40551), (5793, 36141), (12047, 17379), (13517, 15489)]