21583557

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{797}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 12890043

約数列:

[1, 3, 9, 17, 27, 51, 59, 153, 177, 459, 531, 797, 1003, 1593, 2391, 3009, 7173, 9027, 13549, 21519, 27081, 40647, 47023, 121941, 141069, 365823, 423207, 799391, 1269621, 2398173, 7194519, 21583557]

約数ペア:

[(1, 21583557), (3, 7194519), (9, 2398173), (17, 1269621), (27, 799391), (51, 423207), (59, 365823), (153, 141069), (177, 121941), (459, 47023), (531, 40647), (797, 27081), (1003, 21519), (1593, 13549), (2391, 9027), (3009, 7173)]