81211871

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1669}}^1$

素因数の和:1898

約数の個数: 16

約数和(自身を含む): 92584800

約数和(自身を除く): 11372929

約数列:

[1, 13, 19, 197, 247, 1669, 2561, 3743, 21697, 31711, 48659, 328793, 412243, 4274309, 6247067, 81211871]

約数ペア:

[(1, 81211871), (13, 6247067), (19, 4274309), (197, 412243), (247, 328793), (1669, 48659), (2561, 31711), (3743, 21697)]