20011896

素因数分解:

$2^3\times 3^2\times {\mathrm{499}}^1\times {\mathrm{557}}^1$

素因数の和:1068

約数の個数: 48

約数和(自身を含む): 54405000

約数和(自身を除く): 34393104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 499, 557, 998, 1114, 1497, 1671, 1996, 2228, 2994, 3342, 3992, 4456, 4491, 5013, 5988, 6684, 8982, 10026, 11976, 13368, 17964, 20052, 35928, 40104, 277943, 555886, 833829, 1111772, 1667658, 2223544, 2501487, 3335316, 5002974, 6670632, 10005948, 20011896]

約数ペア:

[(1, 20011896), (2, 10005948), (3, 6670632), (4, 5002974), (6, 3335316), (8, 2501487), (9, 2223544), (12, 1667658), (18, 1111772), (24, 833829), (36, 555886), (72, 277943), (499, 40104), (557, 35928), (998, 20052), (1114, 17964), (1497, 13368), (1671, 11976), (1996, 10026), (2228, 8982), (2994, 6684), (3342, 5988), (3992, 5013), (4456, 4491)]