21276054

素因数分解:

$2^1\times 3^3\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28075626

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 83, 94, 101, 141, 166, 202, 249, 282, 303, 423, 498, 606, 747, 846, 909, 1269, 1494, 1818, 2241, 2538, 2727, 3901, 4482, 4747, 5454, 7802, 8383, 9494, 11703, 14241, 16766, 23406, 25149, 28482, 35109, 42723, 50298, 70218, 75447, 85446, 105327, 128169, 150894, 210654, 226341, 256338, 394001, 452682, 788002, 1182003, 2364006, 3546009, 7092018, 10638027, 21276054]

約数ペア:

[(1, 21276054), (2, 10638027), (3, 7092018), (6, 3546009), (9, 2364006), (18, 1182003), (27, 788002), (47, 452682), (54, 394001), (83, 256338), (94, 226341), (101, 210654), (141, 150894), (166, 128169), (202, 105327), (249, 85446), (282, 75447), (303, 70218), (423, 50298), (498, 42723), (606, 35109), (747, 28482), (846, 25149), (909, 23406), (1269, 16766), (1494, 14241), (1818, 11703), (2241, 9494), (2538, 8383), (2727, 7802), (3901, 5454), (4482, 4747)]