19707225

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{2069}}^1$

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 32855040

約数和(自身を除く): 13147815

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 2069, 3175, 6207, 9525, 10345, 31035, 51725, 155175, 262763, 788289, 1313815, 3941445, 6569075, 19707225]

約数ペア:

[(1, 19707225), (3, 6569075), (5, 3941445), (15, 1313815), (25, 788289), (75, 262763), (127, 155175), (381, 51725), (635, 31035), (1905, 10345), (2069, 9525), (3175, 6207)]