20187381

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{6709}}^1$

素因数の和:6788

約数の個数: 16

約数和(自身を含む): 28987200

約数和(自身を除く): 8799819

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 6709, 20127, 114053, 342159, 395831, 1187493, 6729127, 20187381]

約数ペア:

[(1, 20187381), (3, 6729127), (17, 1187493), (51, 395831), (59, 342159), (177, 114053), (1003, 20127), (3009, 6709)]