20787273

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1083

約数の個数: 40

約数和(自身を含む): 35235200

約数和(自身を除く): 14447927

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1039, 1053, 1539, 2223, 3117, 6669, 9351, 13507, 19741, 20007, 28053, 40521, 59223, 84159, 121563, 177669, 256633, 364689, 533007, 769899, 1094067, 1599021, 2309697, 6929091, 20787273]

約数ペア:

[(1, 20787273), (3, 6929091), (9, 2309697), (13, 1599021), (19, 1094067), (27, 769899), (39, 533007), (57, 364689), (81, 256633), (117, 177669), (171, 121563), (247, 84159), (351, 59223), (513, 40521), (741, 28053), (1039, 20007), (1053, 19741), (1539, 13507), (2223, 9351), (3117, 6669)]