20289105

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19603}}^1$

素因数の和:19637

約数の個数: 24

約数和(自身を含む): 36698688

約数和(自身を除く): 16409583

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19603, 58809, 98015, 176427, 294045, 450869, 882135, 1352607, 2254345, 4057821, 6763035, 20289105]

約数ペア:

[(1, 20289105), (3, 6763035), (5, 4057821), (9, 2254345), (15, 1352607), (23, 882135), (45, 450869), (69, 294045), (115, 176427), (207, 98015), (345, 58809), (1035, 19603)]