1900171

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 2521680

約数和(自身を除く): 621509

約数列:

[1, 7, 13, 19, 49, 91, 133, 157, 247, 637, 931, 1099, 1729, 2041, 2983, 7693, 12103, 14287, 20881, 38779, 100009, 146167, 271453, 1900171]

約数ペア:

[(1, 1900171), (7, 271453), (13, 146167), (19, 100009), (49, 38779), (91, 20881), (133, 14287), (157, 12103), (247, 7693), (637, 2983), (931, 2041), (1099, 1729)]