21481563

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1\times {\mathrm{719}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 29998080

約数和(自身を除く): 8516517

約数列:

[1, 3, 23, 69, 433, 719, 1299, 2157, 9959, 16537, 29877, 49611, 311327, 933981, 7160521, 21481563]

約数ペア:

[(1, 21481563), (3, 7160521), (23, 933981), (69, 311327), (433, 49611), (719, 29877), (1299, 16537), (2157, 9959)]