19729418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{7949}}^1$

素因数の和:8041

約数の個数: 16

約数和(自身を含む): 31768200

約数和(自身を除く): 12038782

約数列:

[1, 2, 17, 34, 73, 146, 1241, 2482, 7949, 15898, 135133, 270266, 580277, 1160554, 9864709, 19729418]

約数ペア:

[(1, 19729418), (2, 9864709), (17, 1160554), (34, 580277), (73, 270266), (146, 135133), (1241, 15898), (2482, 7949)]