20685537

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5939}}^1$

素因数の和:5994

約数の個数: 20

約数和(自身を含む): 31624560

約数和(自身を除く): 10939023

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5939, 17817, 53451, 160353, 255377, 481059, 766131, 2298393, 6895179, 20685537]

約数ペア:

[(1, 20685537), (3, 6895179), (9, 2298393), (27, 766131), (43, 481059), (81, 255377), (129, 160353), (387, 53451), (1161, 17817), (3483, 5939)]