21000724506

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{30181}}^1$

素因数の和:30292

約数の個数: 96

約数和(自身を含む): 49720619520

約数和(自身を除く): 28719895014

約数列:

[1, 2, 3, 6, 9, 18, 29, 31, 43, 58, 62, 86, 87, 93, 129, 174, 186, 258, 261, 279, 387, 522, 558, 774, 899, 1247, 1333, 1798, 2494, 2666, 2697, 3741, 3999, 5394, 7482, 7998, 8091, 11223, 11997, 16182, 22446, 23994, 30181, 38657, 60362, 77314, 90543, 115971, 181086, 231942, 271629, 347913, 543258, 695826, 875249, 935611, 1297783, 1750498, 1871222, 2595566, 2625747, 2806833, 3893349, 5251494, 5613666, 7786698, 7877241, 8420499, 11680047, 15754482, 16840998, 23360094, 27132719, 37635707, 40231273, 54265438, 75271414, 80462546, 81398157, 112907121, 120693819, 162796314, 225814242, 241387638, 244194471, 338721363, 362081457, 488388942, 677442726, 724162914, 1166706917, 2333413834, 3500120751, 7000241502, 10500362253, 21000724506]

約数ペア:

[(1, 21000724506), (2, 10500362253), (3, 7000241502), (6, 3500120751), (9, 2333413834), (18, 1166706917), (29, 724162914), (31, 677442726), (43, 488388942), (58, 362081457), (62, 338721363), (86, 244194471), (87, 241387638), (93, 225814242), (129, 162796314), (174, 120693819), (186, 112907121), (258, 81398157), (261, 80462546), (279, 75271414), (387, 54265438), (522, 40231273), (558, 37635707), (774, 27132719), (899, 23360094), (1247, 16840998), (1333, 15754482), (1798, 11680047), (2494, 8420499), (2666, 7877241), (2697, 7786698), (3741, 5613666), (3999, 5251494), (5394, 3893349), (7482, 2806833), (7998, 2625747), (8091, 2595566), (11223, 1871222), (11997, 1750498), (16182, 1297783), (22446, 935611), (23994, 875249), (30181, 695826), (38657, 543258), (60362, 347913), (77314, 271629), (90543, 231942), (115971, 181086)]