81761389

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{839}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 90316800

約数和(自身を除く): 8555411

約数列:

[1, 19, 23, 223, 437, 839, 4237, 5129, 15941, 19297, 97451, 187097, 366643, 3554843, 4303231, 81761389]

約数ペア:

[(1, 81761389), (19, 4303231), (23, 3554843), (223, 366643), (437, 187097), (839, 97451), (4237, 19297), (5129, 15941)]