207980829

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{977}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 358026240

約数和(自身を除く): 150045411

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 109, 217, 279, 327, 651, 763, 977, 981, 1953, 2289, 2931, 3379, 6839, 6867, 8793, 10137, 20517, 23653, 30287, 30411, 61551, 70959, 90861, 106493, 212009, 212877, 272583, 319479, 636027, 745451, 958437, 1908081, 2236353, 3301283, 6709059, 9903849, 23108981, 29711547, 69326943, 207980829]

約数ペア:

[(1, 207980829), (3, 69326943), (7, 29711547), (9, 23108981), (21, 9903849), (31, 6709059), (63, 3301283), (93, 2236353), (109, 1908081), (217, 958437), (279, 745451), (327, 636027), (651, 319479), (763, 272583), (977, 212877), (981, 212009), (1953, 106493), (2289, 90861), (2931, 70959), (3379, 61551), (6839, 30411), (6867, 30287), (8793, 23653), (10137, 20517)]