12928521

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 17664768

約数和(自身を除く): 4736247

約数列:

[1, 3, 67, 131, 201, 393, 491, 1473, 8777, 26331, 32897, 64321, 98691, 192963, 4309507, 12928521]

約数ペア:

[(1, 12928521), (3, 4309507), (67, 192963), (131, 98691), (201, 64321), (393, 32897), (491, 26331), (1473, 8777)]