31618886

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{673}}^1$

素因数の和:840

約数の個数: 24

約数和(自身を含む): 51803640

約数和(自身を除く): 20184754

約数列:

[1, 2, 13, 26, 139, 169, 278, 338, 673, 1346, 1807, 3614, 8749, 17498, 23491, 46982, 93547, 113737, 187094, 227474, 1216111, 2432222, 15809443, 31618886]

約数ペア:

[(1, 31618886), (2, 15809443), (13, 2432222), (26, 1216111), (139, 227474), (169, 187094), (278, 113737), (338, 93547), (673, 46982), (1346, 23491), (1807, 17498), (3614, 8749)]