212447521

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 266063616

約数和(自身を除く): 53616095

約数列:

[1, 11, 13, 17, 143, 187, 221, 281, 311, 2431, 3091, 3421, 3653, 4043, 4777, 5287, 40183, 44473, 52547, 58157, 62101, 68731, 87391, 683111, 756041, 961301, 1136083, 1485647, 12496913, 16342117, 19313411, 212447521]

約数ペア:

[(1, 212447521), (11, 19313411), (13, 16342117), (17, 12496913), (143, 1485647), (187, 1136083), (221, 961301), (281, 756041), (311, 683111), (2431, 87391), (3091, 68731), (3421, 62101), (3653, 58157), (4043, 52547), (4777, 44473), (5287, 40183)]