28781814

素因数分解:

$2^1\times 3^1\times {\mathrm{239}}^1\times {\mathrm{20071}}^1$

素因数の和:20315

約数の個数: 16

約数和(自身を含む): 57807360

約数和(自身を除く): 29025546

約数列:

[1, 2, 3, 6, 239, 478, 717, 1434, 20071, 40142, 60213, 120426, 4796969, 9593938, 14390907, 28781814]

約数ペア:

[(1, 28781814), (2, 14390907), (3, 9593938), (6, 4796969), (239, 120426), (478, 60213), (717, 40142), (1434, 20071)]