20691846

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1693}}^1$

素因数の和:1805

約数の個数: 48

約数和(自身を含む): 51795744

約数和(自身を除く): 31103898

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 97, 126, 194, 291, 582, 679, 873, 1358, 1693, 1746, 2037, 3386, 4074, 5079, 6111, 10158, 11851, 12222, 15237, 23702, 30474, 35553, 71106, 106659, 164221, 213318, 328442, 492663, 985326, 1149547, 1477989, 2299094, 2955978, 3448641, 6897282, 10345923, 20691846]

約数ペア:

[(1, 20691846), (2, 10345923), (3, 6897282), (6, 3448641), (7, 2955978), (9, 2299094), (14, 1477989), (18, 1149547), (21, 985326), (42, 492663), (63, 328442), (97, 213318), (126, 164221), (194, 106659), (291, 71106), (582, 35553), (679, 30474), (873, 23702), (1358, 15237), (1693, 12222), (1746, 11851), (2037, 10158), (3386, 6111), (4074, 5079)]