221489212

素因数分解:

$2^2\times 7^2\times {\mathrm{1130047}}^1$

素因数の和:1130065

約数の個数: 18

約数和(自身を含む): 450889152

約数和(自身を除く): 229399940

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1130047, 2260094, 4520188, 7910329, 15820658, 31641316, 55372303, 110744606, 221489212]

約数ペア:

[(1, 221489212), (2, 110744606), (4, 55372303), (7, 31641316), (14, 15820658), (28, 7910329), (49, 4520188), (98, 2260094), (196, 1130047)]