21676487

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{659}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 25681920

約数和(自身を除く): 4005433

約数列:

[1, 7, 37, 127, 259, 659, 889, 4613, 4699, 24383, 32893, 83693, 170681, 585851, 3096641, 21676487]

約数ペア:

[(1, 21676487), (7, 3096641), (37, 585851), (127, 170681), (259, 83693), (659, 32893), (889, 24383), (4613, 4699)]