81919013

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2861}}^1$

素因数の和:3028

約数の個数: 16

約数和(自身を含む): 94789440

約数和(自身を除く): 12870427

約数列:

[1, 11, 19, 137, 209, 1507, 2603, 2861, 28633, 31471, 54359, 391957, 597949, 4311527, 7447183, 81919013]

約数ペア:

[(1, 81919013), (11, 7447183), (19, 4311527), (137, 597949), (209, 391957), (1507, 54359), (2603, 31471), (2861, 28633)]