18511749

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 27630720

約数和(自身を除く): 9118971

約数列:

[1, 3, 9, 47, 107, 141, 321, 409, 423, 963, 1227, 3681, 5029, 15087, 19223, 43763, 45261, 57669, 131289, 173007, 393867, 2056861, 6170583, 18511749]

約数ペア:

[(1, 18511749), (3, 6170583), (9, 2056861), (47, 393867), (107, 173007), (141, 131289), (321, 57669), (409, 45261), (423, 43763), (963, 19223), (1227, 15087), (3681, 5029)]