20382439

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 28118016

約数和(自身を除く): 7735577

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 677, 1309, 1771, 2737, 4301, 4739, 7447, 11509, 15571, 30107, 52129, 80563, 108997, 126599, 171281, 264707, 886193, 1198967, 1852949, 2911777, 20382439]

約数ペア:

[(1, 20382439), (7, 2911777), (11, 1852949), (17, 1198967), (23, 886193), (77, 264707), (119, 171281), (161, 126599), (187, 108997), (253, 80563), (391, 52129), (677, 30107), (1309, 15571), (1771, 11509), (2737, 7447), (4301, 4739)]