1855581

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 3102624

約数和(自身を除く): 1247043

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 971, 1911, 2913, 6797, 12623, 20391, 37869, 47579, 88361, 142737, 265083, 618527, 1855581]

約数ペア:

[(1, 1855581), (3, 618527), (7, 265083), (13, 142737), (21, 88361), (39, 47579), (49, 37869), (91, 20391), (147, 12623), (273, 6797), (637, 2913), (971, 1911)]