21688149

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{541}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 34965504

約数和(自身を除く): 13277355

約数列:

[1, 3, 7, 21, 23, 69, 83, 161, 249, 483, 541, 581, 1623, 1743, 1909, 3787, 5727, 11361, 12443, 13363, 37329, 40089, 44903, 87101, 134709, 261303, 314321, 942963, 1032769, 3098307, 7229383, 21688149]

約数ペア:

[(1, 21688149), (3, 7229383), (7, 3098307), (21, 1032769), (23, 942963), (69, 314321), (83, 261303), (161, 134709), (249, 87101), (483, 44903), (541, 40089), (581, 37329), (1623, 13363), (1743, 12443), (1909, 11361), (3787, 5727)]