20984208

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1$

素因数の和:229

約数の個数: 120

約数和(自身を含む): 65763648

約数和(自身を除く): 44779440

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 38, 42, 48, 56, 57, 76, 84, 112, 114, 133, 152, 168, 173, 228, 266, 304, 336, 346, 361, 399, 456, 519, 532, 692, 722, 798, 912, 1038, 1064, 1083, 1211, 1384, 1444, 1596, 2076, 2128, 2166, 2422, 2527, 2768, 2888, 3192, 3287, 3633, 4152, 4332, 4844, 5054, 5776, 6384, 6574, 7266, 7581, 8304, 8664, 9688, 9861, 10108, 13148, 14532, 15162, 17328, 19376, 19722, 20216, 23009, 26296, 29064, 30324, 39444, 40432, 46018, 52592, 58128, 60648, 62453, 69027, 78888, 92036, 121296, 124906, 138054, 157776, 184072, 187359, 249812, 276108, 368144, 374718, 437171, 499624, 552216, 749436, 874342, 999248, 1104432, 1311513, 1498872, 1748684, 2623026, 2997744, 3497368, 5246052, 6994736, 10492104, 20984208]

約数ペア:

[(1, 20984208), (2, 10492104), (3, 6994736), (4, 5246052), (6, 3497368), (7, 2997744), (8, 2623026), (12, 1748684), (14, 1498872), (16, 1311513), (19, 1104432), (21, 999248), (24, 874342), (28, 749436), (38, 552216), (42, 499624), (48, 437171), (56, 374718), (57, 368144), (76, 276108), (84, 249812), (112, 187359), (114, 184072), (133, 157776), (152, 138054), (168, 124906), (173, 121296), (228, 92036), (266, 78888), (304, 69027), (336, 62453), (346, 60648), (361, 58128), (399, 52592), (456, 46018), (519, 40432), (532, 39444), (692, 30324), (722, 29064), (798, 26296), (912, 23009), (1038, 20216), (1064, 19722), (1083, 19376), (1211, 17328), (1384, 15162), (1444, 14532), (1596, 13148), (2076, 10108), (2128, 9861), (2166, 9688), (2422, 8664), (2527, 8304), (2768, 7581), (2888, 7266), (3192, 6574), (3287, 6384), (3633, 5776), (4152, 5054), (4332, 4844)]