20780422

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11257}}^1$

素因数の和:11343

約数の個数: 16

約数和(自身を含む): 34044192

約数和(自身を除く): 13263770

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 11257, 22514, 146341, 292682, 799247, 1598494, 10390211, 20780422]

約数ペア:

[(1, 20780422), (2, 10390211), (13, 1598494), (26, 799247), (71, 292682), (142, 146341), (923, 22514), (1846, 11257)]