18195219

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 33242400

約数和(自身を除く): 15047181

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 119, 147, 153, 189, 357, 441, 459, 809, 833, 1071, 1323, 2427, 2499, 3213, 5663, 7281, 7497, 13753, 16989, 21843, 22491, 39641, 41259, 50967, 96271, 118923, 123777, 152901, 288813, 356769, 371331, 673897, 866439, 1070307, 2021691, 2599317, 6065073, 18195219]

約数ペア:

[(1, 18195219), (3, 6065073), (7, 2599317), (9, 2021691), (17, 1070307), (21, 866439), (27, 673897), (49, 371331), (51, 356769), (63, 288813), (119, 152901), (147, 123777), (153, 118923), (189, 96271), (357, 50967), (441, 41259), (459, 39641), (809, 22491), (833, 21843), (1071, 16989), (1323, 13753), (2427, 7497), (2499, 7281), (3213, 5663)]