19491036399

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12664741}}^1$

素因数の和:12664772

約数の個数: 20

約数和(自身を含む): 30648675640

約数和(自身を除く): 11157639241

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12664741, 37994223, 113982669, 240630079, 341948007, 721890237, 1025844021, 2165670711, 6497012133, 19491036399]

約数ペア:

[(1, 19491036399), (3, 6497012133), (9, 2165670711), (19, 1025844021), (27, 721890237), (57, 341948007), (81, 240630079), (171, 113982669), (513, 37994223), (1539, 12664741)]