20439351

素因数分解:

$3^3\times {\mathrm{521}}^1\times {\mathrm{1453}}^1$

素因数の和:1983

約数の個数: 16

約数和(自身を含む): 30359520

約数和(自身を除く): 9920169

約数列:

[1, 3, 9, 27, 521, 1453, 1563, 4359, 4689, 13077, 14067, 39231, 757013, 2271039, 6813117, 20439351]

約数ペア:

[(1, 20439351), (3, 6813117), (9, 2271039), (27, 757013), (521, 39231), (1453, 14067), (1563, 13077), (4359, 4689)]