139909

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 16

約数和(自身を含む): 184320

約数和(自身を除く): 44411

約数列:

[1, 7, 11, 23, 77, 79, 161, 253, 553, 869, 1771, 1817, 6083, 12719, 19987, 139909]

約数ペア:

[(1, 139909), (7, 19987), (11, 12719), (23, 6083), (77, 1817), (79, 1771), (161, 869), (253, 553)]