18851215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{977}}^1$

素因数の和:1226

約数の個数: 16

約数和(自身を含む): 24082272

約数和(自身を除く): 5231057

約数列:

[1, 5, 17, 85, 227, 977, 1135, 3859, 4885, 16609, 19295, 83045, 221779, 1108895, 3770243, 18851215]

約数ペア:

[(1, 18851215), (5, 3770243), (17, 1108895), (85, 221779), (227, 83045), (977, 19295), (1135, 16609), (3859, 4885)]