19908603

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 34944000

約数和(自身を除く): 15035397

約数列:

[1, 3, 9, 11, 13, 31, 33, 39, 93, 99, 117, 143, 279, 341, 403, 429, 499, 1023, 1209, 1287, 1497, 3069, 3627, 4433, 4491, 5489, 6487, 13299, 15469, 16467, 19461, 39897, 46407, 49401, 58383, 71357, 139221, 170159, 201097, 214071, 510477, 603291, 642213, 1531431, 1809873, 2212067, 6636201, 19908603]

約数ペア:

[(1, 19908603), (3, 6636201), (9, 2212067), (11, 1809873), (13, 1531431), (31, 642213), (33, 603291), (39, 510477), (93, 214071), (99, 201097), (117, 170159), (143, 139221), (279, 71357), (341, 58383), (403, 49401), (429, 46407), (499, 39897), (1023, 19461), (1209, 16467), (1287, 15469), (1497, 13299), (3069, 6487), (3627, 5489), (4433, 4491)]