17990791

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 22956864

約数和(自身を除く): 4966073

約数列:

[1, 7, 13, 49, 61, 91, 427, 463, 637, 793, 2989, 3241, 5551, 6019, 22687, 28243, 38857, 42133, 197701, 294931, 367159, 1383907, 2570113, 17990791]

約数ペア:

[(1, 17990791), (7, 2570113), (13, 1383907), (49, 367159), (61, 294931), (91, 197701), (427, 42133), (463, 38857), (637, 28243), (793, 22687), (2989, 6019), (3241, 5551)]