9720963

素因数分解:

$3^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 16972800

約数和(自身を除く): 7251837

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 67, 141, 147, 201, 329, 343, 423, 441, 469, 603, 987, 1029, 1407, 2303, 2961, 3087, 3149, 3283, 4221, 6909, 9447, 9849, 16121, 20727, 22043, 22981, 28341, 29547, 48363, 66129, 68943, 145089, 154301, 198387, 206829, 462903, 1080107, 1388709, 3240321, 9720963]

約数ペア:

[(1, 9720963), (3, 3240321), (7, 1388709), (9, 1080107), (21, 462903), (47, 206829), (49, 198387), (63, 154301), (67, 145089), (141, 68943), (147, 66129), (201, 48363), (329, 29547), (343, 28341), (423, 22981), (441, 22043), (469, 20727), (603, 16121), (987, 9849), (1029, 9447), (1407, 6909), (2303, 4221), (2961, 3283), (3087, 3149)]