208395

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 394992

約数和(自身を除く): 186597

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 421, 495, 1263, 2105, 3789, 4631, 6315, 13893, 18945, 23155, 41679, 69465, 208395]

約数ペア:

[(1, 208395), (3, 69465), (5, 41679), (9, 23155), (11, 18945), (15, 13893), (33, 6315), (45, 4631), (55, 3789), (99, 2105), (165, 1263), (421, 495)]