21199003

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{8389}}^1$

素因数の和:8434

約数の個数: 12

約数和(自身を含む): 25572720

約数和(自身を除く): 4373717

約数列:

[1, 7, 19, 133, 361, 2527, 8389, 58723, 159391, 1115737, 3028429, 21199003]

約数ペア:

[(1, 21199003), (7, 3028429), (19, 1115737), (133, 159391), (361, 58723), (2527, 8389)]