20860749

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25471}}^1$

素因数の和:25497

約数の個数: 24

約数和(自身を含む): 37087232

約数和(自身を除く): 16226483

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25471, 76413, 178297, 229239, 331123, 534891, 993369, 1604673, 2317861, 2980107, 6953583, 20860749]

約数ペア:

[(1, 20860749), (3, 6953583), (7, 2980107), (9, 2317861), (13, 1604673), (21, 993369), (39, 534891), (63, 331123), (91, 229239), (117, 178297), (273, 76413), (819, 25471)]