18397378

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 32

約数和(自身を含む): 30108672

約数和(自身を除く): 11711294

約数列:

[1, 2, 23, 43, 46, 71, 86, 131, 142, 262, 989, 1633, 1978, 3013, 3053, 3266, 5633, 6026, 6106, 9301, 11266, 18602, 70219, 129559, 140438, 213923, 259118, 399943, 427846, 799886, 9198689, 18397378]

約数ペア:

[(1, 18397378), (2, 9198689), (23, 799886), (43, 427846), (46, 399943), (71, 259118), (86, 213923), (131, 140438), (142, 129559), (262, 70219), (989, 18602), (1633, 11266), (1978, 9301), (3013, 6106), (3053, 6026), (3266, 5633)]