28504959

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 46080000

約数和(自身を除く): 17575041

約数列:

[1, 3, 7, 19, 21, 57, 133, 199, 359, 399, 597, 1077, 1393, 2513, 3781, 4179, 6821, 7539, 11343, 20463, 26467, 47747, 71441, 79401, 143241, 214323, 500087, 1357379, 1500261, 4072137, 9501653, 28504959]

約数ペア:

[(1, 28504959), (3, 9501653), (7, 4072137), (19, 1500261), (21, 1357379), (57, 500087), (133, 214323), (199, 143241), (359, 79401), (399, 71441), (597, 47747), (1077, 26467), (1393, 20463), (2513, 11343), (3781, 7539), (4179, 6821)]