19908119

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5501}}^1$

素因数の和:5566

約数の個数: 16

約数和(自身を含む): 25353216

約数和(自身を除く): 5445097

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5501, 38507, 60511, 258547, 423577, 1809829, 2844017, 19908119]

約数ペア:

[(1, 19908119), (7, 2844017), (11, 1809829), (47, 423577), (77, 258547), (329, 60511), (517, 38507), (3619, 5501)]