2661141

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 4233504

約数和(自身を除く): 1572363

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 421, 903, 1263, 2107, 2947, 6321, 8841, 18103, 20629, 54309, 61887, 126721, 380163, 887047, 2661141]

約数ペア:

[(1, 2661141), (3, 887047), (7, 380163), (21, 126721), (43, 61887), (49, 54309), (129, 20629), (147, 18103), (301, 8841), (421, 6321), (903, 2947), (1263, 2107)]