21977985

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 14148735

約数列:

[1, 3, 5, 15, 83, 127, 139, 249, 381, 415, 417, 635, 695, 1245, 1905, 2085, 10541, 11537, 17653, 31623, 34611, 52705, 52959, 57685, 88265, 158115, 173055, 264795, 1465199, 4395597, 7325995, 21977985]

約数ペア:

[(1, 21977985), (3, 7325995), (5, 4395597), (15, 1465199), (83, 264795), (127, 173055), (139, 158115), (249, 88265), (381, 57685), (415, 52959), (417, 52705), (635, 34611), (695, 31623), (1245, 17653), (1905, 11537), (2085, 10541)]