388664721

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{443}}^1\times {\mathrm{1373}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 571012416

約数和(自身を除く): 182347695

約数列:

[1, 3, 9, 71, 213, 443, 639, 1329, 1373, 3987, 4119, 12357, 31453, 94359, 97483, 283077, 292449, 608239, 877347, 1824717, 5474151, 43184969, 129554907, 388664721]

約数ペア:

[(1, 388664721), (3, 129554907), (9, 43184969), (71, 5474151), (213, 1824717), (443, 877347), (639, 608239), (1329, 292449), (1373, 283077), (3987, 97483), (4119, 94359), (12357, 31453)]