20441421

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2269}}^1$

素因数の和:2306

約数の個数: 48

約数和(自身を含む): 39661440

約数和(自身を除く): 19220019

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2269, 3003, 6807, 9009, 15883, 20421, 24959, 29497, 47649, 74877, 88491, 142947, 174713, 206479, 224631, 265473, 324467, 524139, 619437, 973401, 1572417, 1858311, 2271269, 2920203, 6813807, 20441421]

約数ペア:

[(1, 20441421), (3, 6813807), (7, 2920203), (9, 2271269), (11, 1858311), (13, 1572417), (21, 973401), (33, 619437), (39, 524139), (63, 324467), (77, 265473), (91, 224631), (99, 206479), (117, 174713), (143, 142947), (231, 88491), (273, 74877), (429, 47649), (693, 29497), (819, 24959), (1001, 20421), (1287, 15883), (2269, 9009), (3003, 6807)]