4455

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1$

素因数の和:28

約数の個数: 20

約数和(自身を含む): 8712

約数和(自身を除く): 4257

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455]

約数ペア:

[(1, 4455), (3, 1485), (5, 891), (9, 495), (11, 405), (15, 297), (27, 165), (33, 135), (45, 99), (55, 81)]