2145906

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{811}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 5554080

約数和(自身を除く): 3408174

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 811, 882, 1323, 1622, 2433, 2646, 4866, 5677, 7299, 11354, 14598, 17031, 21897, 34062, 39739, 43794, 51093, 79478, 102186, 119217, 153279, 238434, 306558, 357651, 715302, 1072953, 2145906]

約数ペア:

[(1, 2145906), (2, 1072953), (3, 715302), (6, 357651), (7, 306558), (9, 238434), (14, 153279), (18, 119217), (21, 102186), (27, 79478), (42, 51093), (49, 43794), (54, 39739), (63, 34062), (98, 21897), (126, 17031), (147, 14598), (189, 11354), (294, 7299), (378, 5677), (441, 4866), (811, 2646), (882, 2433), (1323, 1622)]