20749642

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{739}}^1$

素因数の和:981

約数の個数: 16

約数和(自身を含む): 31701600

約数和(自身を除く): 10951958

約数列:

[1, 2, 101, 139, 202, 278, 739, 1478, 14039, 28078, 74639, 102721, 149278, 205442, 10374821, 20749642]

約数ペア:

[(1, 20749642), (2, 10374821), (101, 205442), (139, 149278), (202, 102721), (278, 74639), (739, 28078), (1478, 14039)]