19907925

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6173}}^1$

素因数の和:6229

約数の個数: 24

約数和(自身を含む): 33685344

約数和(自身を除く): 13777419

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6173, 18519, 30865, 92595, 154325, 265439, 462975, 796317, 1327195, 3981585, 6635975, 19907925]

約数ペア:

[(1, 19907925), (3, 6635975), (5, 3981585), (15, 1327195), (25, 796317), (43, 462975), (75, 265439), (129, 154325), (215, 92595), (645, 30865), (1075, 18519), (3225, 6173)]