2078209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 16

約数和(自身を含む): 2507776

約数和(自身を除く): 429567

約数列:

[1, 7, 31, 61, 157, 217, 427, 1099, 1891, 4867, 9577, 13237, 34069, 67039, 296887, 2078209]

約数ペア:

[(1, 2078209), (7, 296887), (31, 67039), (61, 34069), (157, 13237), (217, 9577), (427, 4867), (1099, 1891)]