206917641

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 362793600

約数和(自身を除く): 155875959

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 67, 141, 147, 149, 201, 329, 423, 441, 447, 469, 603, 987, 1043, 1341, 1407, 2303, 2961, 3129, 3149, 3283, 4221, 6909, 7003, 7301, 9387, 9447, 9849, 9983, 20727, 21009, 21903, 22043, 28341, 29547, 29949, 49021, 63027, 65709, 66129, 69881, 89847, 147063, 154301, 198387, 209643, 343147, 441189, 462903, 469201, 489167, 628929, 1029441, 1388709, 1407603, 1467501, 3088323, 3284407, 4222809, 4402503, 9853221, 22990849, 29559663, 68972547, 206917641]

約数ペア:

[(1, 206917641), (3, 68972547), (7, 29559663), (9, 22990849), (21, 9853221), (47, 4402503), (49, 4222809), (63, 3284407), (67, 3088323), (141, 1467501), (147, 1407603), (149, 1388709), (201, 1029441), (329, 628929), (423, 489167), (441, 469201), (447, 462903), (469, 441189), (603, 343147), (987, 209643), (1043, 198387), (1341, 154301), (1407, 147063), (2303, 89847), (2961, 69881), (3129, 66129), (3149, 65709), (3283, 63027), (4221, 49021), (6909, 29949), (7003, 29547), (7301, 28341), (9387, 22043), (9447, 21903), (9849, 21009), (9983, 20727)]