7216905

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 12063744

約数和(自身を除く): 4846839

約数列:

[1, 3, 5, 15, 43, 67, 129, 167, 201, 215, 335, 501, 645, 835, 1005, 2505, 2881, 7181, 8643, 11189, 14405, 21543, 33567, 35905, 43215, 55945, 107715, 167835, 481127, 1443381, 2405635, 7216905]

約数ペア:

[(1, 7216905), (3, 2405635), (5, 1443381), (15, 481127), (43, 167835), (67, 107715), (129, 55945), (167, 43215), (201, 35905), (215, 33567), (335, 21543), (501, 14405), (645, 11189), (835, 8643), (1005, 7181), (2505, 2881)]