21301839

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60689}}^1$

素因数の和:60711

約数の個数: 16

約数和(自身を含む): 33986400

約数和(自身を除く): 12684561

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60689, 182067, 546201, 788957, 1638603, 2366871, 7100613, 21301839]

約数ペア:

[(1, 21301839), (3, 7100613), (9, 2366871), (13, 1638603), (27, 788957), (39, 546201), (117, 182067), (351, 60689)]