19107179

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 25428480

約数和(自身を除く): 6321301

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 257, 301, 559, 817, 1729, 1799, 3341, 3913, 4883, 5719, 10621, 11051, 23387, 34181, 63479, 74347, 77357, 143663, 209969, 444353, 1005641, 1469783, 2729597, 19107179]

約数ペア:

[(1, 19107179), (7, 2729597), (13, 1469783), (19, 1005641), (43, 444353), (91, 209969), (133, 143663), (247, 77357), (257, 74347), (301, 63479), (559, 34181), (817, 23387), (1729, 11051), (1799, 10621), (3341, 5719), (3913, 4883)]