21311211

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:602

約数の個数: 16

約数和(自身を含む): 28879488

約数和(自身を除く): 7568277

約数列:

[1, 3, 131, 211, 257, 393, 633, 771, 27641, 33667, 54227, 82923, 101001, 162681, 7103737, 21311211]

約数ペア:

[(1, 21311211), (3, 7103737), (131, 162681), (211, 101001), (257, 82923), (393, 54227), (633, 33667), (771, 27641)]