18958578

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 23066382

約数列:

[1, 2, 3, 6, 23, 37, 46, 47, 69, 74, 79, 94, 111, 138, 141, 158, 222, 237, 282, 474, 851, 1081, 1702, 1739, 1817, 2162, 2553, 2923, 3243, 3478, 3634, 3713, 5106, 5217, 5451, 5846, 6486, 7426, 8769, 10434, 10902, 11139, 17538, 22278, 39997, 67229, 79994, 85399, 119991, 134458, 137381, 170798, 201687, 239982, 256197, 274762, 403374, 412143, 512394, 824286, 3159763, 6319526, 9479289, 18958578]

約数ペア:

[(1, 18958578), (2, 9479289), (3, 6319526), (6, 3159763), (23, 824286), (37, 512394), (46, 412143), (47, 403374), (69, 274762), (74, 256197), (79, 239982), (94, 201687), (111, 170798), (138, 137381), (141, 134458), (158, 119991), (222, 85399), (237, 79994), (282, 67229), (474, 39997), (851, 22278), (1081, 17538), (1702, 11139), (1739, 10902), (1817, 10434), (2162, 8769), (2553, 7426), (2923, 6486), (3243, 5846), (3478, 5451), (3634, 5217), (3713, 5106)]