18638385

素因数分解:

$3^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1481}}^1$

素因数の和:2328

約数の個数: 16

約数和(自身を含む): 29877120

約数和(自身を除く): 11238735

約数列:

[1, 3, 5, 15, 839, 1481, 2517, 4195, 4443, 7405, 12585, 22215, 1242559, 3727677, 6212795, 18638385]

約数ペア:

[(1, 18638385), (3, 6212795), (5, 3727677), (15, 1242559), (839, 22215), (1481, 12585), (2517, 7405), (4195, 4443)]