20879751

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1607}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 28712448

約数和(自身を除く): 7832697

約数列:

[1, 3, 61, 71, 183, 213, 1607, 4331, 4821, 12993, 98027, 114097, 294081, 342291, 6959917, 20879751]

約数ペア:

[(1, 20879751), (3, 6959917), (61, 342291), (71, 294081), (183, 114097), (213, 98027), (1607, 12993), (4331, 4821)]