1247872905

素因数分解:

$3^3\times 5^1\times {\mathrm{9243503}}^1$

素因数の和:9243517

約数の個数: 16

約数和(自身を含む): 2218440960

約数和(自身を除く): 970568055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 9243503, 27730509, 46217515, 83191527, 138652545, 249574581, 415957635, 1247872905]

約数ペア:

[(1, 1247872905), (3, 415957635), (5, 249574581), (9, 138652545), (15, 83191527), (27, 46217515), (45, 27730509), (135, 9243503)]