20897547

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{2503}}^1$

素因数の和:2551

約数の個数: 24

約数和(自身を含む): 31971072

約数和(自身を除く): 11073525

約数列:

[1, 3, 11, 23, 33, 69, 121, 253, 363, 759, 2503, 2783, 7509, 8349, 27533, 57569, 82599, 172707, 302863, 633259, 908589, 1899777, 6965849, 20897547]

約数ペア:

[(1, 20897547), (3, 6965849), (11, 1899777), (23, 908589), (33, 633259), (69, 302863), (121, 172707), (253, 82599), (363, 57569), (759, 27533), (2503, 8349), (2783, 7509)]