28401219

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1$

素因数の和:765

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 26894781

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 99, 133, 171, 189, 209, 231, 297, 399, 513, 627, 693, 719, 1197, 1463, 1881, 2079, 2157, 3591, 4389, 5033, 5643, 6471, 7909, 13167, 13661, 15099, 19413, 23727, 39501, 40983, 45297, 55363, 71181, 95627, 122949, 135891, 150271, 166089, 213543, 286881, 368847, 450813, 498267, 860643, 1051897, 1352439, 1494801, 2581929, 3155691, 4057317, 9467073, 28401219]

約数ペア:

[(1, 28401219), (3, 9467073), (7, 4057317), (9, 3155691), (11, 2581929), (19, 1494801), (21, 1352439), (27, 1051897), (33, 860643), (57, 498267), (63, 450813), (77, 368847), (99, 286881), (133, 213543), (171, 166089), (189, 150271), (209, 135891), (231, 122949), (297, 95627), (399, 71181), (513, 55363), (627, 45297), (693, 40983), (719, 39501), (1197, 23727), (1463, 19413), (1881, 15099), (2079, 13661), (2157, 13167), (3591, 7909), (4389, 6471), (5033, 5643)]