28978206

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{209987}}^1$

素因数の和:210015

約数の個数: 16

約数和(自身を含む): 60476544

約数和(自身を除く): 31498338

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 209987, 419974, 629961, 1259922, 4829701, 9659402, 14489103, 28978206]

約数ペア:

[(1, 28978206), (2, 14489103), (3, 9659402), (6, 4829701), (23, 1259922), (46, 629961), (69, 419974), (138, 209987)]