19978122

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2039}}^1$

素因数の和:2138

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 22323318

約数列:

[1, 2, 3, 6, 23, 46, 69, 71, 138, 142, 213, 426, 1633, 2039, 3266, 4078, 4899, 6117, 9798, 12234, 46897, 93794, 140691, 144769, 281382, 289538, 434307, 868614, 3329687, 6659374, 9989061, 19978122]

約数ペア:

[(1, 19978122), (2, 9989061), (3, 6659374), (6, 3329687), (23, 868614), (46, 434307), (69, 289538), (71, 281382), (138, 144769), (142, 140691), (213, 93794), (426, 46897), (1633, 12234), (2039, 9798), (3266, 6117), (4078, 4899)]