21199629

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 35831808

約数和(自身を除く): 14632179

約数列:

[1, 3, 11, 17, 23, 31, 33, 51, 53, 69, 93, 159, 187, 253, 341, 391, 527, 561, 583, 713, 759, 901, 1023, 1173, 1219, 1581, 1643, 1749, 2139, 2703, 3657, 4301, 4929, 5797, 7843, 9911, 12121, 12903, 13409, 17391, 18073, 20723, 23529, 27931, 29733, 36363, 37789, 40227, 54219, 62169, 83793, 113367, 133331, 227953, 307241, 399993, 415679, 642413, 683859, 921723, 1247037, 1927239, 7066543, 21199629]

約数ペア:

[(1, 21199629), (3, 7066543), (11, 1927239), (17, 1247037), (23, 921723), (31, 683859), (33, 642413), (51, 415679), (53, 399993), (69, 307241), (93, 227953), (159, 133331), (187, 113367), (253, 83793), (341, 62169), (391, 54219), (527, 40227), (561, 37789), (583, 36363), (713, 29733), (759, 27931), (901, 23529), (1023, 20723), (1173, 18073), (1219, 17391), (1581, 13409), (1643, 12903), (1749, 12121), (2139, 9911), (2703, 7843), (3657, 5797), (4301, 4929)]