18673816

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2399}}^1$

素因数の和:2551

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 21646184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 2399, 3892, 4798, 7784, 9596, 16793, 19192, 33586, 67172, 134344, 333461, 666922, 1333844, 2334227, 2667688, 4668454, 9336908, 18673816]

約数ペア:

[(1, 18673816), (2, 9336908), (4, 4668454), (7, 2667688), (8, 2334227), (14, 1333844), (28, 666922), (56, 333461), (139, 134344), (278, 67172), (556, 33586), (973, 19192), (1112, 16793), (1946, 9596), (2399, 7784), (3892, 4798)]