21439187

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6791}}^1$

素因数の和:6850

約数の個数: 16

約数和(自身を含む): 27385344

約数和(自身を除く): 5946157

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6791, 47537, 74701, 278431, 522907, 1949017, 3062741, 21439187]

約数ペア:

[(1, 21439187), (7, 3062741), (11, 1949017), (41, 522907), (77, 278431), (287, 74701), (451, 47537), (3157, 6791)]