21291219070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193556537}}^1$

素因数の和:193556555

約数の個数: 16

約数和(自身を含む): 41808212208

約数和(自身を除く): 20516993138

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193556537, 387113074, 967782685, 1935565370, 2129121907, 4258243814, 10645609535, 21291219070]

約数ペア:

[(1, 21291219070), (2, 10645609535), (5, 4258243814), (10, 2129121907), (11, 1935565370), (22, 967782685), (55, 387113074), (110, 193556537)]