19394271

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:384

約数の個数: 36

約数和(自身を含む): 31174416

約数和(自身を除く): 11780145

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 169, 311, 369, 507, 533, 933, 1521, 1599, 2799, 4043, 4797, 6929, 12129, 12751, 20787, 36387, 38253, 52559, 62361, 114759, 157677, 165763, 473031, 497289, 1491867, 2154919, 6464757, 19394271]

約数ペア:

[(1, 19394271), (3, 6464757), (9, 2154919), (13, 1491867), (39, 497289), (41, 473031), (117, 165763), (123, 157677), (169, 114759), (311, 62361), (369, 52559), (507, 38253), (533, 36387), (933, 20787), (1521, 12751), (1599, 12129), (2799, 6929), (4043, 4797)]