20471187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21391}}^1$

素因数の和:21434

約数の個数: 16

約数和(自身を含む): 30804480

約数和(自身を除く): 10333293

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21391, 64173, 235301, 620339, 705903, 1861017, 6823729, 20471187]

約数ペア:

[(1, 20471187), (3, 6823729), (11, 1861017), (29, 705903), (33, 620339), (87, 235301), (319, 64173), (957, 21391)]