20616993

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{727}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 31344768

約数和(自身を除く): 10727775

約数列:

[1, 3, 9, 23, 69, 137, 207, 411, 727, 1233, 2181, 3151, 6543, 9453, 16721, 28359, 50163, 99599, 150489, 298797, 896391, 2290777, 6872331, 20616993]

約数ペア:

[(1, 20616993), (3, 6872331), (9, 2290777), (23, 896391), (69, 298797), (137, 150489), (207, 99599), (411, 50163), (727, 28359), (1233, 16721), (2181, 9453), (3151, 6543)]