66979791

素因数分解:

$3^6\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:818

約数の個数: 28

約数和(自身を含む): 101299240

約数和(自身を除く): 34319449

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 661, 729, 1251, 1983, 3753, 5949, 11259, 17847, 33777, 53541, 91879, 101331, 160623, 275637, 481869, 826911, 2480733, 7442199, 22326597, 66979791]

約数ペア:

[(1, 66979791), (3, 22326597), (9, 7442199), (27, 2480733), (81, 826911), (139, 481869), (243, 275637), (417, 160623), (661, 101331), (729, 91879), (1251, 53541), (1983, 33777), (3753, 17847), (5949, 11259)]