213473939

素因数分解:

$7^3\times {\mathrm{149}}^1\times {\mathrm{4177}}^1$

素因数の和:4347

約数の個数: 16

約数和(自身を含む): 250680000

約数和(自身を除く): 37206061

約数列:

[1, 7, 49, 149, 343, 1043, 4177, 7301, 29239, 51107, 204673, 622373, 1432711, 4356611, 30496277, 213473939]

約数ペア:

[(1, 213473939), (7, 30496277), (49, 4356611), (149, 1432711), (343, 622373), (1043, 204673), (4177, 51107), (7301, 29239)]