66404865

素因数分解:

$3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20981}}^1$

素因数の和:21200

約数の個数: 16

約数和(自身を含む): 106756416

約数和(自身を除く): 40351551

約数列:

[1, 3, 5, 15, 211, 633, 1055, 3165, 20981, 62943, 104905, 314715, 4426991, 13280973, 22134955, 66404865]

約数ペア:

[(1, 66404865), (3, 22134955), (5, 13280973), (15, 4426991), (211, 314715), (633, 104905), (1055, 62943), (3165, 20981)]