9907905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{743}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 18284544

約数和(自身を除く): 8376639

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 127, 381, 635, 743, 889, 1905, 2229, 2667, 3715, 4445, 5201, 11145, 13335, 15603, 26005, 78015, 94361, 283083, 471805, 660527, 1415415, 1981581, 3302635, 9907905]

約数ペア:

[(1, 9907905), (3, 3302635), (5, 1981581), (7, 1415415), (15, 660527), (21, 471805), (35, 283083), (105, 94361), (127, 78015), (381, 26005), (635, 15603), (743, 13335), (889, 11145), (1905, 5201), (2229, 4445), (2667, 3715)]