21726495

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 44835840

約数和(自身を除く): 23109345

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 83, 105, 135, 189, 249, 277, 315, 415, 581, 747, 831, 945, 1245, 1385, 1743, 1939, 2241, 2493, 2905, 3735, 4155, 5229, 5817, 7479, 8715, 9695, 11205, 12465, 15687, 17451, 22991, 26145, 29085, 37395, 52353, 68973, 78435, 87255, 114955, 160937, 206919, 261765, 344865, 482811, 620757, 804685, 1034595, 1448433, 2414055, 3103785, 4345299, 7242165, 21726495]

約数ペア:

[(1, 21726495), (3, 7242165), (5, 4345299), (7, 3103785), (9, 2414055), (15, 1448433), (21, 1034595), (27, 804685), (35, 620757), (45, 482811), (63, 344865), (83, 261765), (105, 206919), (135, 160937), (189, 114955), (249, 87255), (277, 78435), (315, 68973), (415, 52353), (581, 37395), (747, 29085), (831, 26145), (945, 22991), (1245, 17451), (1385, 15687), (1743, 12465), (1939, 11205), (2241, 9695), (2493, 8715), (2905, 7479), (3735, 5817), (4155, 5229)]