21027076

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1600

約数の個数: 36

約数和(自身を含む): 43436736

約数和(自身を除く): 22409660

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1511, 1988, 3022, 3479, 6044, 6958, 10577, 13916, 21154, 42308, 74039, 107281, 148078, 214562, 296156, 429124, 750967, 1501934, 3003868, 5256769, 10513538, 21027076]

約数ペア:

[(1, 21027076), (2, 10513538), (4, 5256769), (7, 3003868), (14, 1501934), (28, 750967), (49, 429124), (71, 296156), (98, 214562), (142, 148078), (196, 107281), (284, 74039), (497, 42308), (994, 21154), (1511, 13916), (1988, 10577), (3022, 6958), (3479, 6044)]