31439135

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9871}}^1$

素因数の和:9903

約数の個数: 24

約数和(自身を含む): 47267136

約数和(自身を除く): 15828001

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 9871, 49355, 69097, 128323, 345485, 483679, 641615, 898261, 2418395, 4491305, 6287827, 31439135]

約数ペア:

[(1, 31439135), (5, 6287827), (7, 4491305), (13, 2418395), (35, 898261), (49, 641615), (65, 483679), (91, 345485), (245, 128323), (455, 69097), (637, 49355), (3185, 9871)]