520024281

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{9949}}^1$

素因数の和:10109

約数の個数: 32

約数和(自身を含む): 840576000

約数和(自身を除く): 320551719

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 917, 2489, 2751, 7467, 9949, 17423, 29847, 52269, 69643, 189031, 208929, 567093, 1303319, 1323217, 3909957, 3969651, 9123233, 24763061, 27369699, 74289183, 173341427, 520024281]

約数ペア:

[(1, 520024281), (3, 173341427), (7, 74289183), (19, 27369699), (21, 24763061), (57, 9123233), (131, 3969651), (133, 3909957), (393, 1323217), (399, 1303319), (917, 567093), (2489, 208929), (2751, 189031), (7467, 69643), (9949, 52269), (17423, 29847)]