19729749

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{971}}^1$

素因数の和:1508

約数の個数: 16

約数和(自身を含む): 28413504

約数和(自身を除く): 8683755

約数列:

[1, 3, 13, 39, 521, 971, 1563, 2913, 6773, 12623, 20319, 37869, 505891, 1517673, 6576583, 19729749]

約数ペア:

[(1, 19729749), (3, 6576583), (13, 1517673), (39, 505891), (521, 37869), (971, 20319), (1563, 12623), (2913, 6773)]