21786921

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{62071}}^1$

素因数の和:62093

約数の個数: 16

約数和(自身を含む): 34760320

約数和(自身を除く): 12973399

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 62071, 186213, 558639, 806923, 1675917, 2420769, 7262307, 21786921]

約数ペア:

[(1, 21786921), (3, 7262307), (9, 2420769), (13, 1675917), (27, 806923), (39, 558639), (117, 186213), (351, 62071)]