20340866

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1531}}^1$

素因数の和:1626

約数の個数: 32

約数和(自身を含む): 38091648

約数和(自身を除く): 17750782

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1531, 1898, 3062, 6643, 10717, 13286, 19903, 21434, 39806, 111763, 139321, 223526, 278642, 782341, 1452919, 1564682, 2905838, 10170433, 20340866]

約数ペア:

[(1, 20340866), (2, 10170433), (7, 2905838), (13, 1564682), (14, 1452919), (26, 782341), (73, 278642), (91, 223526), (146, 139321), (182, 111763), (511, 39806), (949, 21434), (1022, 19903), (1531, 13286), (1898, 10717), (3062, 6643)]