21292947

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1433}}^1$

素因数の和:1579

約数の個数: 24

約数和(自身を含む): 33406464

約数和(自身を除く): 12113517

約数列:

[1, 3, 9, 13, 39, 117, 127, 381, 1143, 1433, 1651, 4299, 4953, 12897, 14859, 18629, 55887, 167661, 181991, 545973, 1637919, 2365883, 7097649, 21292947]

約数ペア:

[(1, 21292947), (3, 7097649), (9, 2365883), (13, 1637919), (39, 545973), (117, 181991), (127, 167661), (381, 55887), (1143, 18629), (1433, 14859), (1651, 12897), (4299, 4953)]