19975690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2053}}^1$

素因数の和:2206

約数の個数: 32

約数和(自身を含む): 41408640

約数和(自身を除く): 21432950

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2053, 4106, 4865, 9730, 10265, 14371, 20530, 28742, 71855, 143710, 285367, 570734, 1426835, 1997569, 2853670, 3995138, 9987845, 19975690]

約数ペア:

[(1, 19975690), (2, 9987845), (5, 3995138), (7, 2853670), (10, 1997569), (14, 1426835), (35, 570734), (70, 285367), (139, 143710), (278, 71855), (695, 28742), (973, 20530), (1390, 14371), (1946, 10265), (2053, 9730), (4106, 4865)]