18983128

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1855

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 19032872

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 142, 152, 284, 568, 1349, 1759, 2698, 3518, 5396, 7036, 10792, 14072, 33421, 66842, 124889, 133684, 249778, 267368, 499556, 999112, 2372891, 4745782, 9491564, 18983128]

約数ペア:

[(1, 18983128), (2, 9491564), (4, 4745782), (8, 2372891), (19, 999112), (38, 499556), (71, 267368), (76, 249778), (142, 133684), (152, 124889), (284, 66842), (568, 33421), (1349, 14072), (1759, 10792), (2698, 7036), (3518, 5396)]