21567351

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17839}}^1$

素因数の和:17886

約数の個数: 16

約数和(自身を含む): 31969280

約数和(自身を除く): 10401929

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 17839, 53517, 231907, 553009, 695721, 1659027, 7189117, 21567351]

約数ペア:

[(1, 21567351), (3, 7189117), (13, 1659027), (31, 695721), (39, 553009), (93, 231907), (403, 53517), (1209, 17839)]