1388897307

素因数分解:

$3^3\times 7^2\times {\mathrm{1049809}}^1$

素因数の和:1049832

約数の個数: 24

約数和(自身を含む): 2393566800

約数和(自身を除く): 1004669493

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 1049809, 3149427, 7348663, 9448281, 22045989, 28344843, 51440641, 66137967, 154321923, 198413901, 462965769, 1388897307]

約数ペア:

[(1, 1388897307), (3, 462965769), (7, 198413901), (9, 154321923), (21, 66137967), (27, 51440641), (49, 28344843), (63, 22045989), (147, 9448281), (189, 7348663), (441, 3149427), (1323, 1049809)]