20961441

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{773}}^1$

素因数の和:933

約数の個数: 24

約数和(自身を含む): 31876416

約数和(自身を除く): 10914975

約数列:

[1, 3, 9, 23, 69, 131, 207, 393, 773, 1179, 2319, 3013, 6957, 9039, 17779, 27117, 53337, 101263, 160011, 303789, 911367, 2329049, 6987147, 20961441]

約数ペア:

[(1, 20961441), (3, 6987147), (9, 2329049), (23, 911367), (69, 303789), (131, 160011), (207, 101263), (393, 53337), (773, 27117), (1179, 17779), (2319, 9039), (3013, 6957)]