193787307

素因数分解:

$3^2\times 7^2\times {\mathrm{439427}}^1$

素因数の和:439447

約数の個数: 18

約数和(自身を含む): 325616148

約数和(自身を除く): 131828841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 439427, 1318281, 3075989, 3954843, 9227967, 21531923, 27683901, 64595769, 193787307]

約数ペア:

[(1, 193787307), (3, 64595769), (7, 27683901), (9, 21531923), (21, 9227967), (49, 3954843), (63, 3075989), (147, 1318281), (441, 439427)]