20262249

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18919}}^1$

素因数の和:18949

約数の個数: 24

約数和(自身を含む): 35418240

約数和(自身を除く): 15155991

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18919, 56757, 132433, 170271, 321623, 397299, 964869, 1191897, 2251361, 2894607, 6754083, 20262249]

約数ペア:

[(1, 20262249), (3, 6754083), (7, 2894607), (9, 2251361), (17, 1191897), (21, 964869), (51, 397299), (63, 321623), (119, 170271), (153, 132433), (357, 56757), (1071, 18919)]