21758109

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{929}}^1$

素因数の和:1180

約数の個数: 16

約数和(自身を含む): 29968320

約数和(自身を除く): 8210211

約数列:

[1, 3, 37, 111, 211, 633, 929, 2787, 7807, 23421, 34373, 103119, 196019, 588057, 7252703, 21758109]

約数ペア:

[(1, 21758109), (3, 7252703), (37, 588057), (111, 196019), (211, 103119), (633, 34373), (929, 23421), (2787, 7807)]