21018701

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1201}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 24116928

約数和(自身を除く): 3098227

約数列:

[1, 11, 37, 43, 407, 473, 1201, 1591, 13211, 17501, 44437, 51643, 488807, 568073, 1910791, 21018701]

約数ペア:

[(1, 21018701), (11, 1910791), (37, 568073), (43, 488807), (407, 51643), (473, 44437), (1201, 17501), (1591, 13211)]