21696005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1667}}^1$

素因数の和:1828

約数の個数: 16

約数和(自身を含む): 27622080

約数和(自身を除く): 5926075

約数列:

[1, 5, 19, 95, 137, 685, 1667, 2603, 8335, 13015, 31673, 158365, 228379, 1141895, 4339201, 21696005]

約数ペア:

[(1, 21696005), (5, 4339201), (19, 1141895), (95, 228379), (137, 158365), (685, 31673), (1667, 13015), (2603, 8335)]