20751165

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3631}}^1$

素因数の和:3769

約数の個数: 24

約数和(自身を含む): 36261888

約数和(自身を除く): 15510723

約数列:

[1, 3, 5, 9, 15, 45, 127, 381, 635, 1143, 1905, 3631, 5715, 10893, 18155, 32679, 54465, 163395, 461137, 1383411, 2305685, 4150233, 6917055, 20751165]

約数ペア:

[(1, 20751165), (3, 6917055), (5, 4150233), (9, 2305685), (15, 1383411), (45, 461137), (127, 163395), (381, 54465), (635, 32679), (1143, 18155), (1905, 10893), (3631, 5715)]