19809657

素因数分解:

$3^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{373}}^1$

素因数の和:670

約数の個数: 32

約数和(自身を含む): 33749760

約数和(自身を除く): 13940103

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 281, 373, 843, 1119, 1967, 2529, 2611, 3357, 5901, 7587, 7833, 10071, 17703, 23499, 53109, 70497, 104813, 314439, 733691, 943317, 2201073, 2829951, 6603219, 19809657]

約数ペア:

[(1, 19809657), (3, 6603219), (7, 2829951), (9, 2201073), (21, 943317), (27, 733691), (63, 314439), (189, 104813), (281, 70497), (373, 53109), (843, 23499), (1119, 17703), (1967, 10071), (2529, 7833), (2611, 7587), (3357, 5901)]