20640633

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{3371}}^1$

素因数の和:3544

約数の個数: 16

約数和(自身を含む): 29835456

約数和(自身を除く): 9194823

約数列:

[1, 3, 13, 39, 157, 471, 2041, 3371, 6123, 10113, 43823, 131469, 529247, 1587741, 6880211, 20640633]

約数ペア:

[(1, 20640633), (3, 6880211), (13, 1587741), (39, 529247), (157, 131469), (471, 43823), (2041, 10113), (3371, 6123)]