20553611

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 24199920

約数和(自身を除く): 3646309

約数列:

[1, 13, 19, 37, 169, 173, 247, 481, 703, 2249, 3211, 3287, 6253, 6401, 9139, 29237, 42731, 83213, 118807, 121619, 555503, 1081769, 1581047, 20553611]

約数ペア:

[(1, 20553611), (13, 1581047), (19, 1081769), (37, 555503), (169, 121619), (173, 118807), (247, 83213), (481, 42731), (703, 29237), (2249, 9139), (3211, 6401), (3287, 6253)]