16780905

素因数分解:

$3^3\times 5^1\times {\mathrm{124303}}^1$

素因数の和:124317

約数の個数: 16

約数和(自身を含む): 29832960

約数和(自身を除く): 13052055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 124303, 372909, 621515, 1118727, 1864545, 3356181, 5593635, 16780905]

約数ペア:

[(1, 16780905), (3, 5593635), (5, 3356181), (9, 1864545), (15, 1118727), (27, 621515), (45, 372909), (135, 124303)]