20587689

素因数分解:

$3^6\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:960

約数の個数: 28

約数和(自身を含む): 31898112

約数和(自身を除く): 11310423

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 729, 837, 911, 2511, 2733, 7533, 8199, 22599, 24597, 28241, 73791, 84723, 221373, 254169, 664119, 762507, 2287521, 6862563, 20587689]

約数ペア:

[(1, 20587689), (3, 6862563), (9, 2287521), (27, 762507), (31, 664119), (81, 254169), (93, 221373), (243, 84723), (279, 73791), (729, 28241), (837, 24597), (911, 22599), (2511, 8199), (2733, 7533)]