21008559

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3767}}^1$

素因数の和:3807

約数の個数: 24

約数和(自身を含む): 33098112

約数和(自身を除く): 12089553

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 429, 507, 1859, 3767, 5577, 11301, 41437, 48971, 124311, 146913, 538681, 636623, 1616043, 1909869, 7002853, 21008559]

約数ペア:

[(1, 21008559), (3, 7002853), (11, 1909869), (13, 1616043), (33, 636623), (39, 538681), (143, 146913), (169, 124311), (429, 48971), (507, 41437), (1859, 11301), (3767, 5577)]