21720127

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2267}}^1$

素因数の和:2358

約数の個数: 16

約数和(自身を含む): 25909632

約数和(自身を除く): 4189505

約数列:

[1, 11, 13, 67, 143, 737, 871, 2267, 9581, 24937, 29471, 151889, 324181, 1670779, 1974557, 21720127]

約数ペア:

[(1, 21720127), (11, 1974557), (13, 1670779), (67, 324181), (143, 151889), (737, 29471), (871, 24937), (2267, 9581)]