28247569

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 34165800

約数和(自身を除く): 5918231

約数列:

[1, 7, 49, 53, 73, 149, 371, 511, 1043, 2597, 3577, 3869, 7301, 7897, 10877, 27083, 55279, 76139, 189581, 386953, 532973, 576481, 4035367, 28247569]

約数ペア:

[(1, 28247569), (7, 4035367), (49, 576481), (53, 532973), (73, 386953), (149, 189581), (371, 76139), (511, 55279), (1043, 27083), (2597, 10877), (3577, 7897), (3869, 7301)]