27980379

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{5351}}^1$

素因数の和:5447

約数の個数: 24

約数和(自身を含む): 46755072

約数和(自身を除く): 18774693

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 5351, 16053, 37457, 48159, 112371, 337113, 444133, 1332399, 3108931, 3997197, 9326793, 27980379]

約数ペア:

[(1, 27980379), (3, 9326793), (7, 3997197), (9, 3108931), (21, 1332399), (63, 444133), (83, 337113), (249, 112371), (581, 48159), (747, 37457), (1743, 16053), (5229, 5351)]