20408869

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1559}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 3178331

約数列:

[1, 13, 19, 53, 247, 689, 1007, 1559, 13091, 20267, 29621, 82627, 385073, 1074151, 1569913, 20408869]

約数ペア:

[(1, 20408869), (13, 1569913), (19, 1074151), (53, 385073), (247, 82627), (689, 29621), (1007, 20267), (1559, 13091)]