27878403

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3109}}^1$

素因数の和:3187

約数の個数: 24

約数和(自身を含む): 43962960

約数和(自身を除く): 16084557

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 2989, 3109, 8967, 9327, 21763, 65289, 152341, 189649, 457023, 568947, 1327543, 3982629, 9292801, 27878403]

約数ペア:

[(1, 27878403), (3, 9292801), (7, 3982629), (21, 1327543), (49, 568947), (61, 457023), (147, 189649), (183, 152341), (427, 65289), (1281, 21763), (2989, 9327), (3109, 8967)]