81221281

素因数分解:

${\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 85593024

約数和(自身を除く): 4371743

約数列:

[1, 43, 53, 157, 227, 2279, 6751, 8321, 9761, 12031, 35639, 357803, 517333, 1532477, 1888867, 81221281]

約数ペア:

[(1, 81221281), (43, 1888867), (53, 1532477), (157, 517333), (227, 357803), (2279, 35639), (6751, 12031), (8321, 9761)]