21407639

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{937}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 24493056

約数和(自身を除く): 3085417

約数列:

[1, 11, 31, 67, 341, 737, 937, 2077, 10307, 22847, 29047, 62779, 319517, 690569, 1946149, 21407639]

約数ペア:

[(1, 21407639), (11, 1946149), (31, 690569), (67, 319517), (341, 62779), (737, 29047), (937, 22847), (2077, 10307)]