20507368

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11813}}^1$

素因数の和:11857

約数の個数: 32

約数和(自身を含む): 45365760

約数和(自身を除く): 24858392

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 11813, 23626, 47252, 82691, 94504, 165382, 330764, 366203, 661528, 732406, 1464812, 2563421, 2929624, 5126842, 10253684, 20507368]

約数ペア:

[(1, 20507368), (2, 10253684), (4, 5126842), (7, 2929624), (8, 2563421), (14, 1464812), (28, 732406), (31, 661528), (56, 366203), (62, 330764), (124, 165382), (217, 94504), (248, 82691), (434, 47252), (868, 23626), (1736, 11813)]