81103281

素因数分解:

$3^1\times 7^2\times {\mathrm{551723}}^1$

素因数の和:551740

約数の個数: 12

約数和(自身を含む): 125793072

約数和(自身を除く): 44689791

約数列:

[1, 3, 7, 21, 49, 147, 551723, 1655169, 3862061, 11586183, 27034427, 81103281]

約数ペア:

[(1, 81103281), (3, 27034427), (7, 11586183), (21, 3862061), (49, 1655169), (147, 551723)]