20757789

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6571}}^1$

素因数の和:6599

約数の個数: 24

約数和(自身を含む): 33490912

約数和(自身を除く): 12733123

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6571, 19713, 59139, 85423, 177417, 256269, 532251, 768807, 1596753, 2306421, 6919263, 20757789]

約数ペア:

[(1, 20757789), (3, 6919263), (9, 2306421), (13, 1596753), (27, 768807), (39, 532251), (81, 256269), (117, 177417), (243, 85423), (351, 59139), (1053, 19713), (3159, 6571)]