20811672

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:390

約数の個数: 144

約数和(自身を含む): 69624360

約数和(自身を除く): 48812688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 21, 24, 28, 34, 36, 42, 49, 51, 56, 63, 68, 72, 84, 98, 102, 119, 126, 136, 147, 153, 168, 196, 204, 238, 252, 294, 306, 347, 357, 392, 408, 441, 476, 504, 588, 612, 694, 714, 833, 882, 952, 1041, 1071, 1176, 1224, 1388, 1428, 1666, 1764, 2082, 2142, 2429, 2499, 2776, 2856, 3123, 3332, 3528, 4164, 4284, 4858, 4998, 5899, 6246, 6664, 7287, 7497, 8328, 8568, 9716, 9996, 11798, 12492, 14574, 14994, 17003, 17697, 19432, 19992, 21861, 23596, 24984, 29148, 29988, 34006, 35394, 41293, 43722, 47192, 51009, 53091, 58296, 59976, 68012, 70788, 82586, 87444, 102018, 106182, 123879, 136024, 141576, 153027, 165172, 174888, 204036, 212364, 247758, 289051, 306054, 330344, 371637, 408072, 424728, 495516, 578102, 612108, 743274, 867153, 991032, 1156204, 1224216, 1486548, 1734306, 2312408, 2601459, 2973096, 3468612, 5202918, 6937224, 10405836, 20811672]

約数ペア:

[(1, 20811672), (2, 10405836), (3, 6937224), (4, 5202918), (6, 3468612), (7, 2973096), (8, 2601459), (9, 2312408), (12, 1734306), (14, 1486548), (17, 1224216), (18, 1156204), (21, 991032), (24, 867153), (28, 743274), (34, 612108), (36, 578102), (42, 495516), (49, 424728), (51, 408072), (56, 371637), (63, 330344), (68, 306054), (72, 289051), (84, 247758), (98, 212364), (102, 204036), (119, 174888), (126, 165172), (136, 153027), (147, 141576), (153, 136024), (168, 123879), (196, 106182), (204, 102018), (238, 87444), (252, 82586), (294, 70788), (306, 68012), (347, 59976), (357, 58296), (392, 53091), (408, 51009), (441, 47192), (476, 43722), (504, 41293), (588, 35394), (612, 34006), (694, 29988), (714, 29148), (833, 24984), (882, 23596), (952, 21861), (1041, 19992), (1071, 19432), (1176, 17697), (1224, 17003), (1388, 14994), (1428, 14574), (1666, 12492), (1764, 11798), (2082, 9996), (2142, 9716), (2429, 8568), (2499, 8328), (2776, 7497), (2856, 7287), (3123, 6664), (3332, 6246), (3528, 5899), (4164, 4998), (4284, 4858)]