13238345

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 16812480

約数和(自身を除く): 3574135

約数列:

[1, 5, 19, 95, 331, 421, 1655, 2105, 6289, 7999, 31445, 39995, 139351, 696755, 2647669, 13238345]

約数ペア:

[(1, 13238345), (5, 2647669), (19, 696755), (95, 139351), (331, 39995), (421, 31445), (1655, 7999), (2105, 6289)]