21476385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2351}}^1$

素因数の和:2398

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 22553055

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2351, 3045, 7053, 9135, 11755, 16457, 21159, 35265, 49371, 68179, 82285, 105795, 148113, 204537, 246855, 340895, 477253, 613611, 740565, 1022685, 1431759, 2386265, 3068055, 4295277, 7158795, 21476385]

約数ペア:

[(1, 21476385), (3, 7158795), (5, 4295277), (7, 3068055), (9, 2386265), (15, 1431759), (21, 1022685), (29, 740565), (35, 613611), (45, 477253), (63, 340895), (87, 246855), (105, 204537), (145, 148113), (203, 105795), (261, 82285), (315, 68179), (435, 49371), (609, 35265), (1015, 21159), (1305, 16457), (1827, 11755), (2351, 9135), (3045, 7053)]