18272855

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 22477728

約数和(自身を除く): 4204873

約数列:

[1, 5, 61, 181, 305, 331, 905, 1655, 11041, 20191, 55205, 59911, 100955, 299555, 3654571, 18272855]

約数ペア:

[(1, 18272855), (5, 3654571), (61, 299555), (181, 100955), (305, 59911), (331, 55205), (905, 20191), (1655, 11041)]