210812787

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{29243}}^1$

素因数の和:29344

約数の個数: 20

約数和(自身を含む): 318467160

約数和(自身を除く): 107654373

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 29243, 87729, 263187, 789561, 2368683, 2602627, 7807881, 23423643, 70270929, 210812787]

約数ペア:

[(1, 210812787), (3, 70270929), (9, 23423643), (27, 7807881), (81, 2602627), (89, 2368683), (267, 789561), (801, 263187), (2403, 87729), (7209, 29243)]