20512172307

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{689879}}^1$

素因数の和:689963

約数の個数: 32

約数和(自身を含む): 32187041280

約数和(自身を除く): 11674868973

約数列:

[1, 3, 11, 17, 33, 51, 53, 159, 187, 561, 583, 901, 1749, 2703, 9911, 29733, 689879, 2069637, 7588669, 11727943, 22766007, 35183829, 36563587, 109690761, 129007373, 387022119, 402199457, 621580979, 1206598371, 1864742937, 6837390769, 20512172307]

約数ペア:

[(1, 20512172307), (3, 6837390769), (11, 1864742937), (17, 1206598371), (33, 621580979), (51, 402199457), (53, 387022119), (159, 129007373), (187, 109690761), (561, 36563587), (583, 35183829), (901, 22766007), (1749, 11727943), (2703, 7588669), (9911, 2069637), (29733, 689879)]