72183321

素因数分解:

$3^2\times 7^3\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 123760000

約数和(自身を除く): 51576679

約数列:

[1, 3, 7, 9, 21, 49, 63, 67, 147, 201, 343, 349, 441, 469, 603, 1029, 1047, 1407, 2443, 3087, 3141, 3283, 4221, 7329, 9849, 17101, 21987, 22981, 23383, 29547, 51303, 68943, 70149, 119707, 153909, 163681, 206829, 210447, 359121, 491043, 1077363, 1145767, 1473129, 3437301, 8020369, 10311903, 24061107, 72183321]

約数ペア:

[(1, 72183321), (3, 24061107), (7, 10311903), (9, 8020369), (21, 3437301), (49, 1473129), (63, 1145767), (67, 1077363), (147, 491043), (201, 359121), (343, 210447), (349, 206829), (441, 163681), (469, 153909), (603, 119707), (1029, 70149), (1047, 68943), (1407, 51303), (2443, 29547), (3087, 23383), (3141, 22981), (3283, 21987), (4221, 17101), (7329, 9849)]