2921721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 4561920

約数和(自身を除く): 1640199

約数列:

[1, 3, 11, 29, 33, 43, 71, 87, 129, 213, 319, 473, 781, 957, 1247, 1419, 2059, 2343, 3053, 3741, 6177, 9159, 13717, 22649, 33583, 41151, 67947, 88537, 100749, 265611, 973907, 2921721]

約数ペア:

[(1, 2921721), (3, 973907), (11, 265611), (29, 100749), (33, 88537), (43, 67947), (71, 41151), (87, 33583), (129, 22649), (213, 13717), (319, 9159), (473, 6177), (781, 3741), (957, 3053), (1247, 2343), (1419, 2059)]