21271302

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 51495360

約数和(自身を除く): 30224058

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 157, 193, 234, 314, 351, 386, 471, 579, 702, 942, 1158, 1413, 1737, 2041, 2509, 2826, 3474, 4082, 4239, 5018, 5211, 6123, 7527, 8478, 10422, 12246, 15054, 18369, 22581, 30301, 36738, 45162, 55107, 60602, 67743, 90903, 110214, 135486, 181806, 272709, 393913, 545418, 787826, 818127, 1181739, 1636254, 2363478, 3545217, 7090434, 10635651, 21271302]

約数ペア:

[(1, 21271302), (2, 10635651), (3, 7090434), (6, 3545217), (9, 2363478), (13, 1636254), (18, 1181739), (26, 818127), (27, 787826), (39, 545418), (54, 393913), (78, 272709), (117, 181806), (157, 135486), (193, 110214), (234, 90903), (314, 67743), (351, 60602), (386, 55107), (471, 45162), (579, 36738), (702, 30301), (942, 22581), (1158, 18369), (1413, 15054), (1737, 12246), (2041, 10422), (2509, 8478), (2826, 7527), (3474, 6123), (4082, 5211), (4239, 5018)]