20671155

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3617}}^1$

素因数の和:3755

約数の個数: 24

約数和(自身を含む): 36122112

約数和(自身を除く): 15450957

約数列:

[1, 3, 5, 9, 15, 45, 127, 381, 635, 1143, 1905, 3617, 5715, 10851, 18085, 32553, 54255, 162765, 459359, 1378077, 2296795, 4134231, 6890385, 20671155]

約数ペア:

[(1, 20671155), (3, 6890385), (5, 4134231), (9, 2296795), (15, 1378077), (45, 459359), (127, 162765), (381, 54255), (635, 32553), (1143, 18085), (1905, 10851), (3617, 5715)]