28651581

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3581}}^1$

素因数の和:3721

約数の個数: 24

約数和(自身を含む): 47683584

約数和(自身を除く): 19032003

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 3581, 8001, 10743, 25067, 32229, 75201, 225603, 454787, 1364361, 3183509, 4093083, 9550527, 28651581]

約数ペア:

[(1, 28651581), (3, 9550527), (7, 4093083), (9, 3183509), (21, 1364361), (63, 454787), (127, 225603), (381, 75201), (889, 32229), (1143, 25067), (2667, 10743), (3581, 8001)]