21531393

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{61343}}^1$

素因数の和:61365

約数の個数: 16

約数和(自身を含む): 34352640

約数和(自身を除く): 12821247

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 61343, 184029, 552087, 797459, 1656261, 2392377, 7177131, 21531393]

約数ペア:

[(1, 21531393), (3, 7177131), (9, 2392377), (13, 1656261), (27, 797459), (39, 552087), (117, 184029), (351, 61343)]