19855173

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1637}}^1$

素因数の和:1964

約数の個数: 16

約数和(自身を含む): 28619136

約数和(自身を除く): 8763963

約数列:

[1, 3, 13, 39, 311, 933, 1637, 4043, 4911, 12129, 21281, 63843, 509107, 1527321, 6618391, 19855173]

約数ペア:

[(1, 19855173), (3, 6618391), (13, 1527321), (39, 509107), (311, 63843), (933, 21281), (1637, 12129), (4043, 4911)]