21372998

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:931

約数の個数: 16

約数和(自身を含む): 32659200

約数和(自身を除く): 11286202

約数列:

[1, 2, 83, 166, 199, 398, 647, 1294, 16517, 33034, 53701, 107402, 128753, 257506, 10686499, 21372998]

約数ペア:

[(1, 21372998), (2, 10686499), (83, 257506), (166, 128753), (199, 107402), (398, 53701), (647, 33034), (1294, 16517)]