18881401

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{647}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 4757639

約数列:

[1, 7, 11, 77, 379, 647, 2653, 4169, 4529, 7117, 29183, 49819, 245213, 1716491, 2697343, 18881401]

約数ペア:

[(1, 18881401), (7, 2697343), (11, 1716491), (77, 245213), (379, 49819), (647, 29183), (2653, 7117), (4169, 4529)]