21028579

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{479}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 24837120

約数和(自身を除く): 3808541

約数列:

[1, 11, 13, 143, 307, 479, 3377, 3991, 5269, 6227, 43901, 68497, 147053, 1617583, 1911689, 21028579]

約数ペア:

[(1, 21028579), (11, 1911689), (13, 1617583), (143, 147053), (307, 68497), (479, 43901), (3377, 6227), (3991, 5269)]