21085449

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2467}}^1$

素因数の和:2525

約数の個数: 32

約数和(自身を含む): 36013056

約数和(自身を除く): 14927607

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2467, 2849, 7401, 8547, 17269, 27137, 51807, 81411, 91279, 189959, 273837, 569877, 638953, 1004069, 1916859, 3012207, 7028483, 21085449]

約数ペア:

[(1, 21085449), (3, 7028483), (7, 3012207), (11, 1916859), (21, 1004069), (33, 638953), (37, 569877), (77, 273837), (111, 189959), (231, 91279), (259, 81411), (407, 51807), (777, 27137), (1221, 17269), (2467, 8547), (2849, 7401)]