21059098812

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{97871}}^1$

素因数の和:98063

約数の個数: 72

約数和(自身を含む): 54863128320

約数和(自身を除く): 33804029508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 139, 172, 258, 278, 387, 417, 516, 556, 774, 834, 1251, 1548, 1668, 2502, 5004, 5977, 11954, 17931, 23908, 35862, 53793, 71724, 97871, 107586, 195742, 215172, 293613, 391484, 587226, 880839, 1174452, 1761678, 3523356, 4208453, 8416906, 12625359, 13604069, 16833812, 25250718, 27208138, 37876077, 40812207, 50501436, 54416276, 75752154, 81624414, 122436621, 151504308, 163248828, 244873242, 489746484, 584974967, 1169949934, 1754924901, 2339899868, 3509849802, 5264774703, 7019699604, 10529549406, 21059098812]

約数ペア:

[(1, 21059098812), (2, 10529549406), (3, 7019699604), (4, 5264774703), (6, 3509849802), (9, 2339899868), (12, 1754924901), (18, 1169949934), (36, 584974967), (43, 489746484), (86, 244873242), (129, 163248828), (139, 151504308), (172, 122436621), (258, 81624414), (278, 75752154), (387, 54416276), (417, 50501436), (516, 40812207), (556, 37876077), (774, 27208138), (834, 25250718), (1251, 16833812), (1548, 13604069), (1668, 12625359), (2502, 8416906), (5004, 4208453), (5977, 3523356), (11954, 1761678), (17931, 1174452), (23908, 880839), (35862, 587226), (53793, 391484), (71724, 293613), (97871, 215172), (107586, 195742)]