19990201

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2917}}^1$

素因数の和:3024

約数の個数: 16

約数和(自身を含む): 25211520

約数和(自身を除く): 5221319

約数列:

[1, 7, 11, 77, 89, 623, 979, 2917, 6853, 20419, 32087, 224609, 259613, 1817291, 2855743, 19990201]

約数ペア:

[(1, 19990201), (7, 2855743), (11, 1817291), (77, 259613), (89, 224609), (623, 32087), (979, 20419), (2917, 6853)]