21644784

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 120

約数和(自身を含む): 70218720

約数和(自身を除く): 48573936

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 109, 112, 126, 144, 168, 197, 218, 252, 327, 336, 394, 436, 504, 591, 654, 763, 788, 872, 981, 1008, 1182, 1308, 1379, 1526, 1576, 1744, 1773, 1962, 2289, 2364, 2616, 2758, 3052, 3152, 3546, 3924, 4137, 4578, 4728, 5232, 5516, 6104, 6867, 7092, 7848, 8274, 9156, 9456, 11032, 12208, 12411, 13734, 14184, 15696, 16548, 18312, 21473, 22064, 24822, 27468, 28368, 33096, 36624, 42946, 49644, 54936, 64419, 66192, 85892, 99288, 109872, 128838, 150311, 171784, 193257, 198576, 257676, 300622, 343568, 386514, 450933, 515352, 601244, 773028, 901866, 1030704, 1202488, 1352799, 1546056, 1803732, 2404976, 2705598, 3092112, 3607464, 5411196, 7214928, 10822392, 21644784]

約数ペア:

[(1, 21644784), (2, 10822392), (3, 7214928), (4, 5411196), (6, 3607464), (7, 3092112), (8, 2705598), (9, 2404976), (12, 1803732), (14, 1546056), (16, 1352799), (18, 1202488), (21, 1030704), (24, 901866), (28, 773028), (36, 601244), (42, 515352), (48, 450933), (56, 386514), (63, 343568), (72, 300622), (84, 257676), (109, 198576), (112, 193257), (126, 171784), (144, 150311), (168, 128838), (197, 109872), (218, 99288), (252, 85892), (327, 66192), (336, 64419), (394, 54936), (436, 49644), (504, 42946), (591, 36624), (654, 33096), (763, 28368), (788, 27468), (872, 24822), (981, 22064), (1008, 21473), (1182, 18312), (1308, 16548), (1379, 15696), (1526, 14184), (1576, 13734), (1744, 12411), (1773, 12208), (1962, 11032), (2289, 9456), (2364, 9156), (2616, 8274), (2758, 7848), (3052, 7092), (3152, 6867), (3546, 6104), (3924, 5516), (4137, 5232), (4578, 4728)]