18389553

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9623}}^1$

素因数の和:9653

約数の個数: 24

約数和(自身を含む): 30719808

約数和(自身を除く): 12330255

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9623, 28869, 67361, 125099, 202083, 375297, 471527, 875693, 1414581, 2627079, 6129851, 18389553]

約数ペア:

[(1, 18389553), (3, 6129851), (7, 2627079), (13, 1414581), (21, 875693), (39, 471527), (49, 375297), (91, 202083), (147, 125099), (273, 67361), (637, 28869), (1911, 9623)]