21303178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7517}}^1$

素因数の和:7641

約数の個数: 16

約数和(自身を含む): 34733160

約数和(自身を除く): 13429982

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7517, 15034, 97721, 195442, 819353, 1638706, 10651589, 21303178]

約数ペア:

[(1, 21303178), (2, 10651589), (13, 1638706), (26, 819353), (109, 195442), (218, 97721), (1417, 15034), (2834, 7517)]