21728077

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7103}}^1$

素因数の和:7152

約数の個数: 16

約数和(自身を含む): 27279360

約数和(自身を除く): 5551283

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 7103, 49721, 134957, 163369, 944699, 1143583, 3104011, 21728077]

約数ペア:

[(1, 21728077), (7, 3104011), (19, 1143583), (23, 944699), (133, 163369), (161, 134957), (437, 49721), (3059, 7103)]