21884135

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6871}}^1$

素因数の和:6903

約数の個数: 24

約数和(自身を含む): 32903136

約数和(自身を除く): 11019001

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6871, 34355, 48097, 89323, 240485, 336679, 446615, 625261, 1683395, 3126305, 4376827, 21884135]

約数ペア:

[(1, 21884135), (5, 4376827), (7, 3126305), (13, 1683395), (35, 625261), (49, 446615), (65, 336679), (91, 240485), (245, 89323), (455, 48097), (637, 34355), (3185, 6871)]