19147528

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 36842400

約数和(自身を除く): 17694872

約数列:

[1, 2, 4, 8, 67, 134, 139, 257, 268, 278, 514, 536, 556, 1028, 1112, 2056, 9313, 17219, 18626, 34438, 35723, 37252, 68876, 71446, 74504, 137752, 142892, 285784, 2393441, 4786882, 9573764, 19147528]

約数ペア:

[(1, 19147528), (2, 9573764), (4, 4786882), (8, 2393441), (67, 285784), (134, 142892), (139, 137752), (257, 74504), (268, 71446), (278, 68876), (514, 37252), (536, 35723), (556, 34438), (1028, 18626), (1112, 17219), (2056, 9313)]