21513674

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2749}}^1$

素因数の和:2814

約数の個数: 32

約数和(自身を含む): 40656000

約数和(自身を除く): 19142326

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2749, 3913, 5498, 7826, 19243, 35737, 38486, 71474, 118207, 236414, 250159, 500318, 827449, 1536691, 1654898, 3073382, 10756837, 21513674]

約数ペア:

[(1, 21513674), (2, 10756837), (7, 3073382), (13, 1654898), (14, 1536691), (26, 827449), (43, 500318), (86, 250159), (91, 236414), (182, 118207), (301, 71474), (559, 38486), (602, 35737), (1118, 19243), (2749, 7826), (3913, 5498)]