19938309

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{2861}}^1$

素因数の和:2988

約数の個数: 16

約数和(自身を含む): 28024704

約数和(自身を除く): 8086395

約数列:

[1, 3, 23, 69, 101, 303, 2323, 2861, 6969, 8583, 65803, 197409, 288961, 866883, 6646103, 19938309]

約数ペア:

[(1, 19938309), (3, 6646103), (23, 866883), (69, 288961), (101, 197409), (303, 65803), (2323, 8583), (2861, 6969)]