21212793

素因数分解:

$3^3\times 7^1\times {\mathrm{112237}}^1$

素因数の和:112253

約数の個数: 16

約数和(自身を含む): 35916160

約数和(自身を除く): 14703367

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 112237, 336711, 785659, 1010133, 2356977, 3030399, 7070931, 21212793]

約数ペア:

[(1, 21212793), (3, 7070931), (7, 3030399), (9, 2356977), (21, 1010133), (27, 785659), (63, 336711), (189, 112237)]